electric razor vs electric shaver

electric razor and electric shaver both are nouns.

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

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

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

Other synonyms of electric razor include shaver.

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