Definition of fin :
1. A blade of whalebone.
2. A feather; a spline.
3. A finlike appendage, as to submarine boats.
4. A finlike organ or attachment; a part of an object or product which protrudes like a fin
5. A fixed stabilizing surface, usually vertical, similar in purpose to a bilge keel on a ship.
6. A mark or ridge left on a casting at the junction of the parts of a mold.
7. A membranous, finlike, swimming organ, as in pteropod and heteropod mollusks.
8. An organ of a fish, consisting of a membrane supported by rays, or little bony or cartilaginous ossicles, and serving to balance and propel it in the water.
9. End; conclusion; object.
10. The hand.
11. The thin sheet of metal squeezed out between the collars of the rolls in the process of rolling.
12. To carve or cut up, as a chub.
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- " I have," said Fin. - "Myths and Folk Tales of Ireland", Jeremiah Curtin.
- But, a little after, it grew still and, when the reed- warblers had recovered themselves, the pike was gone, and the carp's tail- fin lay and floated on the water. - "The Pond", Carl Ewald.
- This pond was alive with fish, and on one occasion a group of junior and petty officers were fishing here in one of the small boats, when a shark was discovered swimming leisurely along with a fin exposed and evidently gorged with fish. - "Cruise and Captures of the Alabama", Albert M. Goodrich.