fin
n 1: the cardinal number that is the sum of four and one [syn: {five},
{5}, {V}, {cinque}, {quint}, {quintet}, {fivesome}, {quintuplet},
{pentad}, {Phoebe}, {Little Phoebe}]
2: one of a pair of decorative projections on the rear fenders
of an automobile [syn: {tail fin}, {tailfin}]
3: one of a set of parallel slats in a door or window to admit
air and reject rain [syn: {louver}, {louvre}]
4: paddle-like front is an aid in swimming (especially
underwater) [syn: {flipper}, {flippers}, {fins}]
5: a stabilizer that resembles the fins of a fish
6: organ of locomotion and balance in fishes and some other
aquatic animals
v 1: equip with fins, as of a car
2: propel oneself through the water in a finning motion
3: show the fins above the water while swimming (of fish); "The
sharks were finning near the surface" [syn: {break water}]