fin

nouns

the cardinal number that is the sum of four and one
5, Little Phoebe, Phoebe, V, cinque, fin, five, fivesome, pentad, quint, quintet, quintuplet
one of a pair of decorations projecting above the rear fenders of an automobile
fin, tail fin, tailfin
one of a set of parallel slats in a door or window to admit air and reject rain
fin, louver, louvre
a shoe for swimming; the paddle-like front is an aid in swimming (especially underwater)
fin, flipper
a stabilizer on a ship that resembles the fin of a fish
fin
is a part of
a vessel that carries passengers or freight
ship
is a type of (narrower)
a device for making something stable
stabiliser, stabilizer
organ of locomotion and balance in fishes and some other aquatic animals
fin
is a part of
any of various mostly cold-blooded aquatic vertebrates usually having scales and breathing through gills
"the shark is a large fish"; "in the living room there was a tank of colorful fish"
fish
is a type of (narrower)
an external body part that projects from the body
"it is important to keep the extremities warm"
appendage, extremity, member

verbs

equip (a car) with fins
fin
is a type of (narrower)
provide with (something) usually for a specific purpose
"The expedition was equipped with proper clothing, food, and other necessities"
equip, fit, fit out, outfit
propel oneself through the water in a finning motion
fin
domain category
sports that involve bodies of water
aquatics, water sport
is a type of (narrower)
travel through water
"We had to swim for 20 minutes to reach the shore"; "a big fish was swimming in the tank"
swim
show the fins above the water while swimming
"The sharks were finning near the surface"
break water, fin