Synonyms of fin

1. five, 5, V, cinque, quint, quintet, fivesome, quintuplet, pentad, fin, Phoebe, Little Phoebe, digit, figure: usage: the cardinal number that is the sum of four and one
2. tail fin, tailfin, fin, decoration, ornament, ornamentation: usage: one of a pair of decorations projecting above the rear fenders of an automobile
3. louver, louvre, fin, slat, spline: usage: one of a set of parallel slats in a door or window to admit air and reject rain
4. flipper, fin, shoe: usage: a shoe for swimming; the paddle-like front is an aid in swimming (especially underwater)
5. fin, stabilizer, stabiliser: usage: a stabilizer on a ship that resembles the fin of a fish
6. fin, extremity, appendage, member: usage: organ of locomotion and balance in fishes and some other aquatic animals

1. fin, equip, fit, fit out, outfit: usage: equip (a car) with fins
2. fin, swim: usage: propel oneself through the water in a finning motion
3. fin, break water, swim: usage: show the fins above the water while swimming; "The sharks were finning near the surface"