Fin

noun

fɪn

Noun

a shoe for swimming; the paddle-like front is an aid in swimming (especially underwater)
Similar:Flipper
Type of:Shoe
one of a set of parallel slats in a door or window to admit air and reject rain
Similar:LouverLouvre
Type of:SlatSpline
the cardinal number that is the sum of four and one
Similar:5CinqueFiveFivesomePentad
Type of:DigitFigure
one of a pair of decorations projecting above the rear fenders of an automobile
Similar:Tailfin
Type of:OrnamentDecorationOrnamentation
a stabilizer on a ship that resembles the fin of a fish
Type of:StabiliserStabilizer
organ of locomotion and balance in fishes and some other aquatic animals
Type of:AppendageExtremityMember

show the fins above the water while swimming
“The sharks were finning near the surface”
Type of:Swim
equip (a car) with fins
Type of:EquipOutfitFit
propel oneself through the water in a finning motion
Type of:Swim