Armada
In the Spanish language, armada meant a naval fleet, a term that also applied to space fleets.

In 1588, the Spanish Armada was defeated by England. ()

In 2155 of an alternate timeline, Soval warned T'Pol that if she stayed with a group of Earth ships on its way to the Ceti Alpha system she'd most likely find a Xindi armada waiting for them. ()

In the alternate reality,  described the United Federation of Planets to  as a peace-keeping and humanitarian armada in 2255. ()

Three years later in the same universe, the Starfleet Academy long range sensor lab picked up the destruction of a Klingon armada of forty-seven ships over a Klingon prison planet. ()

Admiral Terral described the forces fighting the Federation in the 2250s  as the Klingon armada. ()

In the late 23rd century, the Klingon Empire sent an armada to destroy the tribble homeworld. ()

In early 2367, Admiral J.P. Hanson described the starships assembled at Wolf 359 as an armada. ()

In 2372, a large number of Trabe vessels approached the  and were described by Tuvok as an armada. ()

In 2373, after fifteen Borg cubes passed Voyager, Captain Kathryn Janeway ordered Ensign Harry Kim to maintain a long range sensor lock on that armada. ()

In 2374, Tuvok again described a large number of approaching ships as an armada, this time a number of  and . ()

In 2375, Onquanii described the series 5 long-range tactical armor unit as capable of flying through an ion storm or an armada of hostile ships and still find its target. ()

In 2378, The Doctor, disguised as Captain Janeway, apparently agreed to have the Voyager meet with a R'Kaal armada and surrender the ship's warp core to them. Chakotay suggested to fight their way out, but "Janeway" replied while they might make it past this armada they could lose many crewmembers in the process or even the entire ship. ()

In the late 24th century, after the Federation learned that the Romulan sun was about to go supernova, Starfleet planned to use a rescue armada of 10,000 warp-capable ferries to relocate Romulan citizens. However, the armada was wiped out in the Attack on Mars. ()

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Military units