The most common shapes are called open-ended spanner and ring spanner. The term wrench is generally used for tools that turn non-fastening devices (e.g. tap wrench and pipe wrench), or may be used for a monkey wrench - an adjustable spanner. In North American English, wrench is the standard term.
The definition of first mate is the person on a boat that is second in charge after the captain. An example of first mate is the person who gives orders while the captain is busy. first mate. first mate.
1 Mate authorizes the mariner to serve as second captain on any inspected or uninpsected vessel (other than a towing vessel) within the limitations on the endorsement or as OUPV. 2  12-Pack Uninspected Passenger Vessel is a vessel greater than 100 gross registered tons (GRT) carrying 12 or fewer passengers for hire.