A Quick and Simple Dictionary

Fin

1. Proper noun.  commune in the Somme department in France.
2. Noun.  (ichthyology) One of the appendages of a fish, used to propel itself and to manoeuvre/maneuver.
3. Noun.  A similar appendage of a cetacean or other marine animal.
4. Noun.  A thin, rigid component of an aircraft, extending from the fuselage and used to stabilise and steer the aircraft.
5. Noun.  A similar structure on the tail of a bomb, used to help keep it on course.
6. Noun.  A hairstyle, resembling the fin of a fish, in which the hair is combed and set into a vertical ridge along the top of the head from about the crown to the forehead.
7. Noun.  A device worn by divers and swimmers on their feet.
8. Noun.  An extending part on a surface of a radiator, engine, heatsink, etc., used to facilitate cooling.
9. Noun.  A sharp raised edge (generally in concrete) capable of damaging a roof membrane or vapor retarder.
10. Verb.  (transitive) To cut the fins from a fish, shark etc.
11. Verb.  (intransitive) To swim in the manner of a fish.
12. Verb.  (transitive) To provide (a motor vehicle etc) with fins.
13. Noun.  (US, slang) A five-dollar bill.