barb vs spear

barb and spear both are nouns.

Word	Noun	Adjective	Verb	Adverb
barb	Yes	No	Yes	No
spear	Yes	No	Yes	No

barb (noun)	spear (noun)
one of the parallel filaments projecting from the main shaft of a feather	a long pointed rod used as a tool or weapon
a subsidiary point facing opposite from the main point that makes an arrowhead or spear hard to remove	an implement with a shaft and barbed point used for catching fish
the pointed part of barbed wire
an aggressive remark directed at a person like a missile and intended to have a telling effect

barb (verb)	spear (verb)
provide with barbs	pierce with a spear
	thrust up like a spear