military vs spearhead

military and spearhead both are nouns.

Word	Noun	Adjective	Verb	Adverb
military	Yes	Yes	No	No
spearhead	Yes	No	Yes	No

military (noun)	spearhead (noun)
the military forces of a nation	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.)

military (adjective)	spearhead (adjective)
associated with or performed by members of the armed services as contrasted with civilians
characteristic of or associated with soldiers or the military
of or relating to the study of the principles of warfare

military (verb)	spearhead (verb)
	be the leader of