fins

/fɪnz/

noun

1
One of the appendages of a fish, used to propel itself and to manoeuvre/maneuver.
“The fish's fins minimize water flow.”
2
A similar appendage of a cetacean or other marine animal.
“a dolphin's fin”
3
A thin, rigid component of an aircraft, extending from the fuselage and used to stabilise and steer the aircraft.
“The fin stabilises the plane in flight.”
4
A similar structure on the tail of a bomb, used to help keep it on course.
5
A hairstyle, resembling the fin of a fish, in which the hair is combed and set into a vertical ridge along the top of the head from about the crown to the forehead.
6
A device worn by divers and swimmers on their feet.
“The divers wore fins to swim faster.”
7
An extending part on a surface of a radiator, engine, heatsink, etc., used to facilitate cooling.
8
A sharp raised edge (generally in concrete) capable of damaging a roof membrane or vapor retarder.

1
To cut the fins from a fish, shark, etc.
2
(Of a fish) to swim with the dorsal fin above the surface of the water.
3
To swim in the manner of a fish.
“A neutrally buoyant diver does not need to fin to maintain depth.”
4
To provide (a motor vehicle etc) with fins.

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