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.