"fins" in the noun sense
1. five, 5, V, cinque, quint, quintet, fivesome, quintuplet, pentad, fin, Phoebe, Little Phoebe
the cardinal number that is the sum of four and one
2. tail fin, tailfin, fin
one of a pair of decorations projecting above the rear fenders of an automobile
3. louver, louvre, fin
one of a set of parallel slats in a door or window to admit air and reject rain
4. flipper, fin
a shoe for swimming the paddle-like front is an aid in swimming (especially underwater)
a stabilizer on a ship that resembles the fin of a fish
organ of locomotion and balance in fishes and some other aquatic animals
"fins" in the verb sense
equip (a car) with fins
propel oneself through the water in a finning motion
3. fin, break water
show the fins above the water while swimming
"The sharks were finning near the surface"
Source: WordNet® (An amazing lexical database of English)
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