Nautical terms
Nautical terms, known colloquially as sailor talk or as navy phrases, were a collection of traditional sea-going references. These references were often later used for modern starship operations.

Tradition 
Both naval traditions and maritime traditions existed well into the 24th century, and were commonplace within Starfleet. (; )

Miles O'Brien liked to sing "ancient Human sea chanties" in his kayaking holoprogram, which he felt was "necessary to establish a smooth paddling rhythm." Upon learning this fact from Odo, the Female Changeling (who was posing as Kira Nerys) expressed that she "never pictured O'Brien as a nautical type." ()

Key personnel on a ship 
The crew were the individuals, or shipmates, who served aboard a ship and collectively made up the complement.

Crewmembers or personnel generally consisted of officers and crewmen, as well as civilians. These were also referred to as the ship's "hands".

 Boatswain: a non-commissioned officer who was responsible for mooring, berthing, gangways, and decorating them accordingly upon visitation of a high-ranking official or VIP; he/she was also responsible for a formal greeting upon such an arrival by which the crewman will blow a specialized whistle in a stylized manner. (; ; ; )
 Ship's captain, captain, master, shipmaster, or skipper: typically, a merchant ship's commanding officer responsible for overseeing the overall operation of ship and crew. On naval vessels, officers below the military rank of captain were nevertheless still addressed as "captain" when commanding a ship. (; ; ; )
 Chief engineer: person responsible for the physical components and operational systems of a ship including and especially that of propulsion. ()
 Ship's cook, cook, or chef: one who prepared meals. (; ; )
 Dock master: an officer directly responsible for managing the comings and goings of vessels in his/her assigned berth. (; )
 First mate or first officer: the officer who was second in command of a ship directly beneath the captain; often referred to as "number one", "executive officer", or simply "exec" or "XO". The first officer was responsible for ensuring the captain's orders were carried out to his/her specifications and could be considered the chief pilot of a vessel, as navigation orders generally were relayed through the first officer.
 Helmsman: a crewmember who was in direct control of a vessel's course and speed, and making adjustments as directed by the duty conn officer or captain. 
 Lookout
 Midshipman
 Pilot
 Quartermaster
 Sailor
 Steward: a manager of goods and functions aboard a ship.
 Yeoman: an assistant to senior officers.

See also 
 Castaway
 Dockmaster
 Dock worker
 Fisherman
 Merchant Marine
 Mutineer
 Oyster pirate
 Pirate
 Privateer
 Whale hunter

Orders 
 Abandon ship
 Battle stations: ship's crew reported to their assigned combat duty stations; could also refer to the location where a particular crewman reported for combat duty.
 Belay
 Flank speed: the fastest speed a ship was capable of, pushing its engines to their maximum output.
 General quarters: a state of alert aboard ship.
 Hail: to call, invite, or beckon, initiate means of communication.
 Heave: (; ; )
 Ready: to prepare something for immediate potential use.
 Secure: to check to see that something was properly "stowed" or otherwise in its proper place or condition. (Example: to "secure" a door/hatch would be to ensure that it was properly closed and/or locked; to "secure" a room would be to see to it that everything within was properly stowed, or alternately that it was properly locked up.); Also meaning "to Secure" as in ensure tactically sound conditions of readiness such as free from intruders, potential enemies.
 Stow: to place goods or belongings in their appropriate storage areas.

Other terminology 
 Berth: an allotted space for a ship to dock. Also a place for a bed/sleeping for personnel aboard a ship
 Damage control: the act or task of performing emergency repairs to parts of a ship damaged by combat or accident.
 Decommission: to retire, or discontinue a ship's service life.
 Dock: to place the ship into a facility where it is secured for repair, service or rest.
 Jury rigging: to cobble a repair using whatever means are available.
 Leave: an approved absence from duty usually for rest and relaxation or convalescence.
 Mooring: to attach the ship to a fixed berth or dock to prevent drifting and keep secure.
 Mothball
 Mother ship: A primary ship whose capability is to carry or serve smaller ships within or in proximity to itself 
 Tacking: to change course by turning into the wind
 Watch: a duty shift.

Ships

Classifications

Ship-board facilities
 Bay: a stowage facility for auxiliary vessels, consumables, or goods such as "shuttlebay" or "cargo bay".
 Bridge: the main command center of a ship where course was set and essential operations of the ship were monitored. 
 Brig: a secure area where prisoners were held.
 Engine room: area that contained the ship's engines and power generators. 
 Flight deck: an alternate term for launch/landing area (also called a "shuttlebay").
 Hangar deck: an alternate term for small craft storage (also called a "shuttlebay").
 Head: the bathroom facilities on board a ship.
 Mess: the dining facilities on board a ship
 Quarters: sleeping area(s) for the crew.
 Ship's hold: a location where cargo was held
 Sickbay: the ship's hospital; called an infirmary on planet- or base-side facilities.

Relative on-board positions 

 Bow, stem, fore: the forward end of a vessel. ()
 Amidships or midship (; )
 Port: the left side of a vessel when facing forward. ()
 Starboard: the right side of a vessel when facing forward. ()
 Stern, aft: the rear end of a vessel. ()

 Dorsal: the top of a vessel.
 During Shinzon's attack on the  in 2379, the starship's dorsal shielding failed as the result of a focused attack. ()
 Topside ()
 Ventral: the bottom of a vessel.
 The ventral plating team stated they would be finished with their work on  in three days in April 2151. ()
 During Shinzon's attack on the Enterprise-E in 2379, all ventral phasers were fired in a single maneuver. In addition, the starship's ventral shielding failed on deck 29 as the result of a focused attack. ()

Operational components 
 Anchor: A heavy weight meant to keep a ship from drifting
 Ballast
 Bulkhead: A wall within a ship meant to define room parameters and act as structural support and rigidity
 Compass: A navigational tool that uses magnetic pole locations to situate directional heading
 Deck: a floor or level of a ship usually oriented horizontally; often used to describe the walking surface of floors within a ship or the outermost habitable section of a ship.
 Hatch: A door; usually one that can be sealed off from a hostile environment.
 
 Porthole: A window for outside view
 Rudder
 Sails
 
 
 Jib
 Main sail
 Royal
 Spritsail
 Stunsail
 Sextant
 Ship's bell
 Spar
 Mast
 Yardarm
 Turret: A rotatable weapons mount that permits a given weapon to fire in the direction it can rotate or move
 Wheel
 Manual steering column

Navigation

Piloting 
Course: the direction of travel of a ship or object; courses could be described by destination ("Set course for Starbase 375…"), by heading (see below), or by bearing (see below).
To set a course was to either (as an order) command the ship to be turned to that course, or (as an action) to actually turn the ship to the prescribed course.
Azimuth
Bearing: the direction of an object in relation to the ship's heading; the ship's direction was automatically assumed to be zero and the vector of the other ship's angle was calculated in two 360° arcs that described the object's position along the horizontal and vertical planes of a vessel. The position was described using the horizontal angle in degrees, followed by that of the vertical plane, both measurements separated by the word "mark." ()
Heading: the direction of the ship in relation to the center of the galaxy broken down into a 360° arc on the X-axis (yaw); another 360° arc was the direction separated by saying "mark", which was the Y axis (pitch). For example, if a commander of a starship wanted a heading of 180 mark 0, he'd want to turn the ship to the southernmost section of the galaxy while keeping the Y axis of the ship parallel to the plane of the galaxy.

 Pitch: The orientation of a ship's bow and aft ends respectively (up and down).
 Roll: The orientation of the ventral and dorsal sides of the ship respectively.
 Yaw: The orientation of the port and starboard sides of the ship respectively (side to side).

Measurements 
 : a measure of wind speed
 Nautical mile: a measure of distance

Maneuvers 
 Circumnavigation
 Back full / full astern: Full speed in reverse (; )
 Closing: the act of approaching a particular place or object, typically another ship. 
 Come about: an order to change course to that given after the order.
Collision course: a course designed to make the ship assuming the course collide with a particular target, often another ship.
Ramming speed: the fastest speed a ship could attain while still retaining sufficient maneuverability to remain on a collision course with a target.
Conic intersection flight path: a course designed to bring one ship close to another in a way that was not intended to appear threatening to the other vessel; such a course was used by the  to approach V'Ger in the mid-2270s. ()
Docking maneuvers: maneuvers that allowed a ship to to physically link up with another other body (typically at airlocks), or to allow a ship to be brought into its slip in a dock, or to bring a small craft into its bay.
En route, on course: referred to a vessel proceeding on course to a destination. 
Evasive course or maneuver: one designed to allow the ship to either miss or be missed by another object. Often an Order for a ship to move in such a way to evade a potentially hazardous impact or maneuver to avoid enemy weapons.
{{bginfo|Evasive maneuvers were either given as course changes or as a set of changes called a "pattern". The Starfleet "Pattern Delta" was a maneuver that involved rocking a starship hard, from port to starboard, to shake pursuing starships. ()}}
The use of hard prefacing a direction change, as in "hard aport", indicated to the helmsman that the maneuver was to be made as rapidly and severely as the ship was capable of doing.
Intercept course: a course designed to directly and quickly approach another ship.
Rendezvous : to meet another vessel at a predetermined place and time.
Station keeping or station-keeping: referred to a starship or other spacecraft maintaining a constant position in space relative to another object; this was typically performed using maneuvering thrusters. (; )
Steady, steady as she goes, steady as we go, steady as you go, or steady on (that): To stay on course. (, , , , , ; ; ; ; ; ; ; ; )

 Relative positions 

Abeam: the relative bearing at a right angle to the central line of a ship's keel.
 In 2365, Worf announced that the "probe is standing abeam," meaning that it was steady alongside the USS Enterprise-D. ()
 In 2370, upon locating the abandoned and self-driven  traveling at warp through space, Kira Nerys ordered Jadzia Dax to plot an intercept course, and "once we're abeam, match our speeds exactly and I'll transport over." ()
Alongside: to be "alongside" another ship was to be positioned next to it (typically "abeam") and moving in the same direction and speed; to order a helmsman to "bring us alongside" was to order him to assume this position regarding another vessel.
 Ahead, forward of the bow
 Aboard: meaning that/whom is inside the ship such as a person or object.
 Aport (; )
 Ashore: Off ship; as used on spacefaring vessels, it usually referred to planets or spacedocks. ((, )
 Astern
 Outboard

 Shore locations and facilities 
 Berth
 Harbor
 Lighthouse
Lighthouse of Alexandria
 : a location where personnel and goods could be transferred to and from a ship while not under way; frequently, construction and repair facilities could be found in these type of ports; also known as a "base" or "yard".
Drydock: a specific type of dock where ships were protected from typical external environments where they could be repaired or constructed.
Docking berth: a place in a port where a ship could be secured. May have also be known as a "dock" or a "slip".
Shipyard: A construction facility where ships were built.
 Wharf: A level facility to which ships can moor for the loading and unloading of goods, cargo and personnel.

 Phrases 

"Abandon ship"
An order for all hands to evacuate a vessel due to an imminent catastrophic event which threatened to destroy the ship. (; ; , et al; , et al; , et al; ; )

"Able-bodied crewmen"
Healthy crewmembers capable of performing their duties.
 (; ; )

"Above board"
On or above the deck; also a metaphor for honesty where information is in plain view, not hiding anything.
 (; )

"Adrift"
Floating freely in space, possibly damaged, with no pilot in control at the helm or propulsion system inoperable. (, , , , , , , ; ; , , , , , ; , , , )

"(Run) aground"
 (; )

"Ahead full"
To move a ship in a course at its fullest speed in its front oriented direction.
 (; ; )

"Ahoy" 
A greeting.
 ()

"All hands" 
A collective term for all personnel aboard a starship or starbase. A ship-wide announcement could be addressed to "all hands." A ship that had been lost with no survivors was said to have been "lost with all hands." (; ; )
 After Jonathan Archer did some research in the Vulcan database, he corrected T'Pol's information that the T'Plana was lost with all hands. Archer also used the term "all hands" three times when informing the crew about new information. ()
 In 2155 in the mirror universe, Captain Maximilian Forrest ordered all hands on the  to escape pods and to abandon ship as the ship took heavy damage from an attack by Tholians. () Later, Captain  ordered all hands to battle stations on the  as the ship intercepted a battle between the  and a group of four rebel starships. ()
 In 2268, Lieutenant Nyota Uhura ordered all hands to battle stations on the  when the ship received a priority 1 distress call. ()
 In 2293, Captain Hikaru Sulu ordered all hands to battle stations on the  during an attack by Kang's  battle cruiser. ()
 In 2368, when the  was trapped in a temporal causality loop, Commander William T. Riker ordered all hands to emergency escape pods. Not long after this, Captain Picard ordered all hands to abandon ship just before a warp core breach. Both orders ended up being repeated a number of times with each successive iteration of the loop. ()
 In 2371, Captain Picard called for all hands to make sail during a celebration on the holodeck on a simulated ship in which Worf was promoted to the rank of lieutenant commander. Not long after this, Commander Riker was forced to issue a far more serious order, calling all hands to battle stations on the Enterprise-D after it received a distress call from the Amargosa observatory reporting that they were under attack. Not long after this, he ordered all hands to brace for impact prior to the ship's saucer section crashing on Veridian III. ()
 That same year, Lieutenant Tuvok warned all hands on the  to brace for impact just before the ship was swiped by the tail of a space-dwelling lifeform. ()
 In 2373, Commander Chakotay ordered all hands aboard Voyager to brace for impact as a subspace shock wave from a supernova approached the ship. ()
 That same year, Commander William T. Riker ordered all hands to battle stations on the  as they prepared to head to the Battle of Sector 001. ()
 That same year, when Commander Chakotay realized that the translocation by the Nyrians to the USS Voyager was most likely a ploy to take control of the ship, he issued a security alert to all hands, though there were only twelve other crewmen on board at the time. ()
 In an alternate 2374, Captain Kathryn Janeway warned all hands on the USS Voyager to brace for impact prior to the ship's being hit by a spatial distortion from the Krenim weapon ship which altered history. In this new altered history, during an attack by the Krenim in the Year of Hell, Captain Kathryn Janeway declared "All hands, battle stations. This is turning into the Week of Hell." Later, during that same alternate timeline, Commander Chakotay ordered all hands to battle stations prior to another Krenim attack. Following this, Janeway again ordered all hands to brace for impact prior to the ship's being hit by a distortion from the weapon ship, which this time had no effect due to the vessel's new temporal shielding. ()
 That same year, Captain Janeway ordered all hands to battle stations during an apparent attack on Voyager by the Dream Aliens. The event, however, was actually a fiction created as part of a collective unconsciousness to trick the Voyager crew into believing they were still awake. ()
 Also that year, Cadet / Acting Commander Karen Farris called all hands to battle stations on the  prior to the ship's beginning shadowing a Jem'Hadar battleship. ()
 In 2375, Commander Chakotay ordered all hands to battle stations prior to an engagement with a Borg sphere. ()
 In 2376, Captain Rudolph Ransom ordered all hands to battle stations on the  prior to an engagement with Voyager. ()
 In Lieutenant Tuvok's Insurrection Alpha holoprogram, Commander Chakotay's statement "Chakotay to all hands. Let's do it." was his signal to begin a Maquis mutiny on board Voyager. ()
 In 3189, when Captain Saru requested a status report, Lieutenant Joann Owosekun reported that all hands were ready for the spore drive jump to Ni'Var. ()

"All stop"; "full stop"
An order given aboard a vessel to stop all engines from moving either fore or aft. Often answered with "Answering all stop, captain", "Reading all stop, sir", or even just "aye sir".

 Jean-Luc Picard gave an "all stop" order to Wesley Crusher when the  encountered the "Tin Man". ()
 Jean-Luc Picard gave an "all stop" order to Wesley Crusher when the USS Enterprise-D encountered K'mpec's attack cruiser. ()
 Jean-Luc Picard gave the order multiple times after various attempts to remove themselves from the gravitational wake of a mass of two-dimensional beings. ()
 William T. Riker gave an "all stop" order to Wesley Crusher when after scanning the Enterprise-D it was determined that Jean-Luc Picard was no longer on board. ()

"Anchor's aweigh" 
A response to the order that the anchor had be lifted, often used to announce a vessel's readiness for immediate departure.
 Tom Paris, who was excited to use "sailor talk", used the expression when he received confirmation that the immersion shielding was ready aboard the  to launch  and plunge itself into the Waters. ()

"Attention on deck"
 ()

"Aye"; "aye, sir"; "aye, aye, sir"; "aye, aye, captain"; "aye, aye, doc(tor)" 
An acknowledgment of an order.
 One "aye" for the acknowledgment. () 
 Two "aye"s for acknowledgment and carrying out of order. Commander Riker believed that only one "aye" was sufficient for both. ()

"Batten down the hatches"
To secure a ship for inclement weather or hazardous conditions; to inform the crew to act within parameters maximizing ship and crew safety.
 (; ; )

"Below decks"
To be under the decks; often used in naval terms for the decks of a ship below the waterline where less prominent but essential services were performed.
 (; )

"Bilge"
 ()

"Blow the hatch"
 ()

"Bon voyage"
French litertally translated as "Well Trip" a old custom for wishing one a safe/enjoyable trip

"Breach"
A damaged area of ship's hull whereby exposed to hazard external environments

"Brine in the s" 
A Monean expression "used to describe someone who has special connection to the Waters."
 In the case of Burkus, his family had lived in the Waters for ten generations, as such, "We protected this ocean, cultivated it, lived in harmony with the animals that inhabit it." ()

"By your leave"
 ()

"(Captain goes) down with the ship"
An adage of maritime custom whereby a ship's captain is honor bound for the responsibility of the ship and those embarking; whereby the crew/passengers are given priority and captain forgoes departure to be the last person to leave the ship barring a potential sinking, catastrophe or total destruction. (; )
 A variation on that theme was stated by Admiral Kirk to Saavik, following her failed attempt at the Kobiyashi Maru scenario. Following the departure of the trainee crew she remained to discuss her performance with Kirk, who upon initially noticing her asked, "Well, Mister Saavik, are you going to stay with the sinking ship?" ()
 Kathryn Janeway considered this one of three things to remember about being a starship captain. ()

"Careening"
 ()

"Clean bill of health"
A medical official providing guarantee the examined patient is healthy, therefore capable of performing their duty
 (; ; ; )

"Clear the bridge"
To have all bridge crew or just non-essential personnel leave the bridge. (; ; ; )

"Come about"
To change direction, usually opposite of present course
 (, et al.)

"Come to"

"Cut and run"
 ()

"Dead ahead"; "dead astern"
 (; , et al.)
 (; )

"Dead in the water"
Ship is unable to move; due to circumstance.
 (; , , , et al.)

"Disembark"; "permission to disembark"
To leave the ship or station. 
 (; ; ; ; ; ; )

"Flagship"
A ship in a fleet primarily serving as the command vessel carrying the highest ranking commanding officer (usually admiral)

"From stem to stern"; "from bow to stern"
The full length of a ship, from front to back; generally used in terms of defining the full ship. (; ; ; )

"Gangway"
 ()

"Give way"
To yield in order for someone/something else to move
 (; ; )

"Hand over fist"
To do so in quick fashion
 ()

"Have the conn"; "take the conn" 
To take control of a ship's maneuvering controls.
The conn was a line officer who was in command of the bridge. During the 23rd century, the phrase was utilized in the traditional sense, where the following officers were said to have had the conn:
 Arex ()
 Pavel Chekov ()
 Will Decker ()
 William T. Riker ()
 Montgomery Scott (, , ,  (inferred); )
 Saavik ()
 Spock (;  (x3); )
 Hikaru Sulu (; ;  (x2); ; )

During the 24th century, it was said in reference to the conn officer or the actual helm itself, where the following officers have been said to have the conn (position):
 Chakotay ()
 Mark Jameson ()
 Jean-Luc Picard ()
 Natasha Yar ()

"Heave to"
To come to a stop. 
 ()

"Hit the deck"
Order/warning for one to immediately drop oneself as low as possible due to a avoid or prepare for a potential impact, danger or hazard. On land it is referred to as "Hit the Dirt"
 ()

"Irons"
Metal shackles/cuffs meant to restrain a potentially dangerous person

"Keelhauling"
A ancient form of punishment in martime days. To punish severly.

"Landlubber"
Someone unfamiliar with the sea. 
 Gillian Taylor described Kirk as a "landlubber" when she heard that the alleged admiral was from Iowa. ()

"Leading edge"
 (; )

"Learn the ropes"
To understand the basic work performed.
 ()

"Listing"
When a vessel began to roll or lean too much to one side, which could lead to a ship capsizing. 
 Captain Pavel Chekov noted that the Klingon Empire's flagship, Kronos One, was still listing after it was struck by a photon torpedo that appeared to have been fired from the . Upon viewing the scene, Captain Kirk added that "she's spinning out of control." ()

"Long shot"
A difficult circumstance to achieve. A potential solution that has low probability of success.
 (, et al.)

"Loose cannon"
One who is highly unpredictable or uncontrollable, refuses to abide by rules and is therefore a potential danger to others.
 (, )

"Maiden voyage"
The First trip of a vessel in its intended duty, often the very first deployment after its construction.

"Make sail"; "set sail"
To prepare a vessel for its given destination.
 (; )

"Man overboard"
 (; )

"Mothball(s)" 
Ship is decommissioned/retired from service but stored in a state of conducted maintenance should the need arise to put the ship into service once again.
Following the cancellation of the NX Project in 2143, Commander Jonathan Archer urged Commander A.G. Robinson not to give up and let Starfleet Command put NX-Beta in mothballs, when they were so close to breaking the warp 3 barrier. ()

In early 2154, Hernandez asked Jonathan Archer, who was arguing against continued space exploration, if he thought Starfleet should "put our starships in mothballs". Archer said that they should be put to use defending Earth instead. ()

Following the signing of the Federation Charter in 2161, T'Pol informed Captain Archer that Admiral  was asking for Archer's approval for begin the decommission protocols from . Archer asked that they finish one thing at a time, and that "after the charter's signed, I'll give him whatever he needs to put Enterprise in mothballs." Prior to this,  wished to purge the injectors on the ship, but Malcolm Reed didn't see the point, as the ship was going to be "joining the mothball fleet" the following week. ()

During the initial phase of discussions with the Klingon Empire, following the destruction of Praxis in 2293, Spock indicated that negotiations would soon be beginning for the "dismantling of our space stations and starbases along the Neutral Zone"… One of the Starfleet military aides inquired "are we talking about mothballing the Starfleet?" The commander-in-chief, Admiral , however assured here that "I'm sure that our exploration and scientific programs would be unaffected." ()

The decommissioned  was in mothballs at the time of the 's disappearance in 2294. ()In alternate 2422, Captain Nog helped Jake Sisko round up the old crew of Deep Space 9 and pulled the  out of mothballs, on a mission to rescue Benjamin Sisko from being trapped within a temporal displacement. () 

"Mother ship"

"Now hear this"
A term used to preface ship-wide announcements aboard Starfleet starships to call the listener's attention. The announcer then issued orders to the entire crew or directed an individual crewmember to report to a particular location. ()

The phrase was used by Captain Jean-Luc Picard on at least two occasions during the Farpoint Mission in 2364 () and by an unidentified crewmember on board the  in the alternate timeline in which the Federation was at war with the Klingon Empire. ()

"Old salt"
A seasoned sailor.
 When Tom Paris took immense interest in 's discovery of the Waters, Captain Janeway took note of all his maritime knowledge, telling him that she "had no idea you were such an old salt." ()

"(Admiral) on deck"; "(captain) on (the) deck"
 (; ; )

"(Admiral) on the bridge"; "(captain) on the bridge"
Mentioned in the Starfleet manual; often acknowledged with "as you were", "at ease", or "carry on". (; ; ; ; ; ; , ; )

 When "Captain" Harry Kim entered the bridge of the , Terek announced his entrance. Kim inquired "Where did you learn that?" Terek explained that he'd "been studying that Starfleet manual you loaned me." ()

"On leave" 
To be on shore leave, medical leave, or a leave of absence. (; ; ; ; ; )

 When Hoshi Sato was on leave from Starfleet in 2151, she was teaching linguistics at the Amazon University. When Jonathan Archer approached her to join , she declined stating she had three weeks left of leave, forcing him to suggest that he could order her to return. The way she saw it, "You would have to forcibly recall me, which would require a reprimand which would disqualify me from serving on an active vessel." ()

"Over a barrel"
In a helpless or dangerous position.
 ()

"Overbearing"
One who is obsessively controlling
 (; ; ; ; )

"Port of call" 
A port where a ship stopped. 
 The 's last port of call prior to being discovered adrift by the  was the Darwin Genetic Research Station on Gagarin IV. ()

"Safe harbor"
 (; ; )

"Safe haven"
 (; ; )

"Scuttle" 
To purposely sink a ship.
 Benjamin Sisko believed that Bajoran Vedek Yarka might have been using Trakor's Third Prophecy "as a way to scuttle the peace treaty" between Bajor and Cardassia. ()

"Scuttlebutt" 
Rumors spread aboard ship.
 While visiting the  in 2365, Kyle Riker had heard scuttlebutt that Katherine Pulaski wanted to see him. ()

"Sea dog"
 

"Seaworthy"
To be worthy for service at sea.
 In order to conduct the underwater mission in the Waters, Tom Paris informed Captain Kathryn Janeway that he could make the  seaworthy "in not time" with only "a few simple thruster modifications." This was good news to Janeway, who otherwise explained that it would "take at least a week to make the necessary modifications" to make  seaworthy. ()

"Shakedown cruise"
A ship's voyage where all its systems and hardware are monitored and the performance is measured before the ship is put into active service. Shakedown cruise is meant to test a ship's capability and address potential design flaws, maintenance issues and service errors.

"Ship out"
The Deployment of personnel from a base to a frontline or active situation
 (; )

"Shipshape (and Bristol fashion)" 
Term meaning "everything in perfect order". (; )
 Captain Jean-Luc Picard used the term to describe Lieutenant Geordi La Forge's model of the original . ()

"Shore leave"
An allotted timeframe whereby a ship's personnel are permitted to leave the ship for recreational pursuits

"Shove off"
To literally shove a boat off of or away from the shore, ship, or dock.
 Tom Paris, who was excited about using "sailor talk", used the expression when he encountered Harry Kim in the corridor prior to the s departure into the Waters. ()

"Show the flag"
To make an official visit to a foreign port. 
 On more than one occasion, Captain Benjamin Sisko set the  to different borders to show the flag. ()
 When  approached the Numiri-Banean war zone, while en route to , Captain Kathryn Janeway opted to take Voyager itself in because "the stakes are too high to send a shuttlecraft this time. I want to show our flag to make it clear we mean business." ()

"Silent running" 
To operate in a stealthy/covert manner to avoid detection
 (; ; )

"Skeleton crew"
A bare minimum crew attachment capable of running a ship. A reduced workforce
 (; ; ; ; )

"Smooth sailing"
Ideal conditions with no difficulty
 ; 

"Son of a gun" 
Originally referred to a son being born of questionable legitimacy between the ship's cannons; it later became a euphemistic variation of "son of a bitch." 
 When Worf demanded that Vic Fontaine "Sing!", Vic got the message and said to the band, "Son of a gun, I think he means it." ()
 Later, when Vic realized what time it was and caught himself being late, he told Nog, "Oh, son of a gun. I got to get ready for the show.''" ()

"(On) (hot) standby"
To prepare an individual or item for potential use. 
 ()

"Stores"
cargo storage aboard a ship, namely the necessary equipment/parts and resources to keep it up and running

"Struck the sails"
 

"To the bitter end" 
 (; )

"Toe the line"
Conform to rule/authority
 ()

"Truss"
 ()

"Turn a blind eye to (something)"
To willfully ignore
 (; ; )

"Under the weather"
Ill/sick
 (; 

"Under way"
The condition of a ship moving under its own power.
 (; ; ; )

"Walk the plank"
A old maritime form of punishment whereby one was slowly forced off the ship's edge presumably for execution. Later used as a euphamism for threat of substantial reprisal or punishment.

"(Warning) shot (across the bow)" 
The use of a weapon in the direction of a target, but not intended to hit the target. This could be done for many reasons, but was commonly done to send the message that direct fire would occur if the target did not give an appropriate response. (; ; ; ; )
 According to Ambassador Soval, Vulcans usually did not fire warning shots. ()

 A type 3 stealth assault involved firing a warning shot at a targeted vessel to force it to comply with the demands of the Hierarchy vessel employing the tactic. ()

"Wide berth"
Term instructing a pilot to avoid or make sure adequate space is given for other ships to pass. Also a personal term meaning to give someone a degree of personal space. (; ; ; ; )

"Women and children first"
Admonition for the more vulnerable passengers of the ship to evacuate before the able-bodied grown men. ()

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de:Kielholen
Linguistics