Part of speech:
(Biology) A part or organ, such as an arm, leg, tail, or fin, that is joined to the axis or trunk of a body.
Relating to or on the back or upper surface of an animal.
A lantern-shaped cupola on the roof of a medieval building for admitting air and providing for the escape of smoke.
A part or surface, such as a wing, propeller blade, or rudder, that interacts with a flow of air to provide stability, rotation, lift, or thrust.
(Figuratively) Power; might; strength; support.
A large, flat, paddlelike rubber device worn on each foot by a swimmer or skin diver to increase the force of the kick
Physical assistance; help:
(Automotive) A fin like projection at the rear of a car, common on American cars of the 1950s.
The cardinal number equal to 4 + 1.
A V-engine having eight cylinders.
One of five offspring born in a single birth.
A group of five.
the cardinal number that is the sum of four and one
Find another word for fin. In this page you can discover 37 synonyms, antonyms, idiomatic expressions, and related words for fin, like: appendage, dorsal, louver, tailplane, airfoil, arm, flipper, hand, pinna, stabilizer and vane.