electric shaver vs electric razor

electric shaver and electric razor both are nouns.

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

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

electric shaver and electric razor: a razor powered by an electric motor

Other synonyms of electric shaver include shaver.

electric shaver (noun)	electric razor (noun)
a razor powered by an electric motor	a razor powered by an electric motor