razor vs shaver

razor and shaver both are nouns.

Word	Noun	Adjective	Verb	Adverb
razor	Yes	No	Yes	No
shaver	Yes	No	No	No

As nouns, shaver is a hyponym of razor; that is, shaver is a word with a more specific, narrower meaning than razor:

Other hyponyms of razor include safety razor, electric razor, electric shaver, straight razor.

razor (noun)	shaver (noun)
edge tool used in shaving	a razor powered by an electric motor
	a young person of either sex
	an adult male who shaves

razor (verb)	shaver (verb)
shave with a razor