Definition of fin:
- A blade of whalebone.
- A feather; a spline.
- A finlike appendage, as to submarine boats.
- A finlike organ or attachment; a part of an object or product which protrudes like a fin
- A fixed stabilizing surface, usually vertical, similar in purpose to a bilge keel on a ship.
- A mark or ridge left on a casting at the junction of the parts of a mold.
- A membranous, finlike, swimming organ, as in pteropod and heteropod mollusks.
- 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.
- End; conclusion; object.
- The hand.
- The thin sheet of metal squeezed out between the collars of the rolls in the process of rolling.
- To carve or cut up, as a chub.
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- "Myths and Folk Tales of Ireland", Jeremiah Curtin.
- "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.