1. [ noun ] (nautical) a stabilizer that resembles the fins of a fish
Related terms: stabilizer vane ship
2. [ noun ] (clothing) a shoe for swimming; the paddle-like front is an aid in swimming (especially underwater)
Synonyms: flippers fins flipper
Related terms: shoe
3. [ noun ] one of a set of parallel slats in a door or window to admit air and reject rain
Synonyms: louvre louver
Related terms: slat jalousie
4. [ noun ] one of a pair of decorations projecting above the rear fenders of an automobile
Synonyms: tailfin tail_fin
Related terms: decoration car
5. [ noun ] (mathematics) the cardinal number that is the sum of four and one
Synonyms: 5 five quintuplet quint cinque fivesome quintet pentad Phoebe Little_Phoebe V
Related terms: digit
6. [ verb ] show the fins above the water while swimming (of fish)
Synonyms: break_water

"The sharks were finning near the surface"

Related terms: swim
7. [ verb ] propel oneself through the water in a finning motion
Related terms: swim water_sport
8. [ verb ] equip with fins, as of a car
Related terms: equip tail_fin
9. [ noun ] (zoology) organ of locomotion and balance in fishes and some other aquatic animals
Related terms: extremity dorsal_fin pelvic_fin tail_fin pectoral_fin fish ray
Similar spelling:   Fino