spear-point vs spearhead

spear-point and spearhead both are nouns.

Word	Noun	Adjective	Verb	Adverb
spear-point	Yes	No	No	No
spearhead	Yes	No	Yes	No

As nouns, spear-point and spearhead are synonyms defined as:

Other synonyms of spear-point include spearpoint.

spear-point (noun)	spearhead (noun)
the head and sharpened point of a spear	the head and sharpened point of a spear
	the leading military unit in an attack
	someone who leads or initiates an activity (attack or campaign etc.)

spear-point (verb)	spearhead (verb)
	be the leader of