say it: fin
fin is a noun and verb meaning "the cardinal number that is the sum of four and one". It carries 9 recorded senses.
one of a pair of decorations projecting above the rear fenders of an automobile
a stabilizer on a ship that resembles the fin of a fish
organ of locomotion and balance in fishes and some other aquatic animals
equip (a car) with fins
show the fins above the water while swimming
“The sharks were finning near the surface”
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for fin come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.