one of the pointed tines of a fork.

any pointed, projecting part, as of an antler.

a branch of a stream.

Jewelry. a tapering metal projection, usually heavier than a claw, rising from the base of a jewelry setting and used to hold a stone in position as needed. Compare claw ( def 7 ).

to pierce or stab with or as if with a prong.

to supply with prongs.