Synonym: 5, Little Phoebe, Phoebe, V, break water, cinque, five, fivesome, flipper, louver, louvre, pentad, quint, quintet, quintuplet, tail fin, tailfin. Similar words: find, fine, fined, finis, offing, coffin, final, finger. Meaning: [fɪn] 
n. 1. the cardinal number that is the sum of four and one 2. one of a pair of decorations projecting above the rear fenders of an automobile 3. one of a set of parallel slats in a door or window to admit air and reject rain 4. a shoe for swimming; the paddle-like front is an aid in swimming (especially underwater) 5. a stabilizer on a ship that resembles the fin of a fish 6. organ of locomotion and balance in fishes and some other aquatic animals. v. 1. equip (a car) with fins 2. propel oneself through the water in a finning motion 3. show the fins above the water while swimming.
n. 1. the cardinal number that is the sum of four and one 2. one of a pair of decorations projecting above the rear fenders of an automobile 3. one of a set of parallel slats in a door or window to admit air and reject rain 4. a shoe for swimming; the paddle-like front is an aid in swimming (especially underwater) 5. a stabilizer on a ship that resembles the fin of a fish 6. organ of locomotion and balance in fishes and some other aquatic animals. v. 1. equip (a car) with fins 2. propel oneself through the water in a finning motion 3. show the fins above the water while swimming. 
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31. In the grey-green water we could dimly see a large, pale body beneath the grey fin.
32. Males are slimmer than females, with a more deeply forked tail fin.
33. It seems that no one had bothered to check with manufacturing concerning how such a fin could be fabricated or installed.
34. Instead it has one long ribbon-like fin that runs along its underside from close to its stumpy tail to its head.
35. To move the fin the spines have to be moveable; these assuredly were not.
36. There is just a touch of yellow along the very top of the dorsal fin.
37. Crucian carp are also very similar but goldfish have a less-deep body and a shorter dorsal fin.
38. The commercial fishermen were in search of Blue Fin Tuna.
39. He uses his enlarged tail fin to regularly splash them with water, until they hatch about two days later.
40. This is the mark in the water caused by the fish's dorsal fin.
41. Sometimes you may spot an occasional dorsal fin when it pops out like a miniature yacht sail.
42. New fibreglass wing tips and dorsal fin additions were attached.
43. The tail, or caudal fin, is large and sickle-shaped, to give short,[sentencedict.com] rapid bursts of speed.
44. Part of it went upwards perforating the leading edge of the fin in several places.
45. The shape of the elongated spiky dorsal fin is reflected in the sweep of the flowing ventral fins.
46. A vertical surface forward of the vertical stabilizer (fin).
47. You owe me a fin.
48. The Alliance Needs More Rainbow Fin Albacore!
49. The dorsal fin is spinous.
50. Caution: Be careful of sharp fin edges while disassembling!
51. A goldfish LanChou belongs to the egg, dorsal fin.
52. Including the horizontal stabilizer fin and the vertical fin.
53. A prominent blackish area behind the pectoral fin bases.
54. Tip [ give ] us your fin.
55. The fish's tail fin was hurt.
56. A surfboard fin sliced the crest of a wave.
57. Fin whale has become a periscope?
58. Fin can be represented as the number five.
59. Empennage — Install Stabilizer and Vertical Fin.
60. A triple fin fish is nearly indistinguishable from the bright red sponge on which it rests.