skipjack

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. Any of several marine food fishes of the genus Euthynnus, related to and resembling the tuna, especially an economically important striped species (E. pelamis) occurring in all tropical areas.
2. n. Any of various fishes, such as the bluefish, that habitually leap out of the water.
3. n. Nautical A small sailboat having a bottom shaped like a flat V and vertical sides.

Century Dictionary and Cyclopedia

1. n. A shallow, impertinent fellow; an insignificant fop; a puppy.
2. n. Formerly, a youth who rode horses up and down, showing them off with a view to sale.
3. n. The merrythought of a fowl made into a little toy by a twisted thread and a small piece of stick. A similar skipjack is oftener made of the breastbone of a goose or duck, across the costal processes of which is twisted a piece of twine with a little stick, the latter being stuck at the other end with a bit of shoemaker's wax. As the adhesion of the stick to the wax suddenly gives way, under the continued tension of the twisted string, the toy skips into the air, or turns a somersault. Also called jumping-jack.
4. n. In ichthyology, one of several different fishes which dart through and sometimes skip out of the water. The bluefish, Pomatomus saltatrix. See cut under bluefish.
5. n. In entomology, a click-beetle or snapping-beetle; an elater; any member of the Elateridæ. See cut under click-beetle.
6. n. A form of boat used on the Florida coast, built very flat, with little or no sheer, and with chubby bows.
7. n. Pomolobus chrysochloris, of the family Clupeidæ, a herring found land-locked in the Ohio and Mississippi rivers.

Wiktionary

1. n. Any of several unrelated fish.
2. n. obsolete An upstart.
3. n. An elaterid; a click beetle.
4. n. A shallow sailboat with a rectilinear or V-shaped cross section.

GNU Webster's 1913

1. n. obsolete An upstart.
2. n. (Zoöl.) An elater; a snap bug, or snapping beetle.
3. n. (Zoöl.) A name given to several kinds of a fish, as the common bluefish, the alewife, the bonito, the butterfish, the cutlass fish, the jurel, the leather jacket, the runner, the saurel, the saury, the threadfish, etc.
4. n. (Naut.) A shallow sailboat with a rectilinear or V-shaped cross section.

WordNet 3.0

1. n. medium-sized tuna-like food fish of warm Atlantic and Pacific waters; less valued than tuna
2. n. oceanic schooling tuna of considerable value in Pacific but less in Atlantic; reaches 75 pounds; very similar to if not the same as oceanic bonito
3. n. able to right itself when on its back by flipping into the air with a clicking sound