What is Wedge?

Wedge definition and meaning on Dictionary terms:
a piece of hard material with two principal faces meeting in a sharply acute angle, for raising, holding, or splitting objects by applying a pounding or driving force, as from a hammer.Compare machine(def 3b).
a piece of anything of like shape: a wedge of pie.
a cuneiform character or stroke of this shape.

Meteorology. (formerly) an elongated area of relatively high pressure.
something that serves to part, split, divide, etc.: The quarrel drove a wedge into the party organization.
Military. (formerly) a tactical formation generally in the form of a V with the point toward the enemy.
Golf. a club with an iron head the face of which is nearly horizontal, for lofting the ball, especially out of sand traps and high grass.
Optics. optical wedge.
Chiefly Coastal Connecticut and Rhode Island. a hero sandwich.
a wedge heel or shoe with such a heel.

verb (used with object), wedged, wedg