overspecialise vs narrow

overspecialise is not a noun while narrow is a noun.

Word	Noun	Adjective	Verb	Adverb
overspecialise	No	No	Yes	No
narrow	Yes	Yes	Yes	No

As verbs, narrow is a hypernym of overspecialise; that is, narrow is a word with a broader meaning than overspecialise:

Other hypernyms of overspecialise include narrow down, specialise, specialize.

overspecialise (noun)	narrow (noun)
	a narrow strait connecting two bodies of water

overspecialise (adjective)	narrow (adjective)
	not wide
	very limited in degree
	lacking tolerance or flexibility or breadth of view
	characterized by painstaking care and detailed examination
	limited in extent or scope

overspecialise (verb)	narrow (verb)
become overly specialized	make or become more narrow or restricted
	become tight or as if tight
	become more focused on an area of activity or field of study
	define clearly