electric razor vs shaver

electric razor and shaver both are nouns.

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

As nouns, electric razor and shaver are synonyms defined as:

Other synonyms of electric razor include electric shaver.

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