push button vs electric switch

push button and electric switch both are nouns.

Word	Noun	Adjective	Verb	Adverb
push button	Yes	No	No	No
electric switch	Yes	No	No	No

As nouns, electric switch is a hypernym of push button; that is, electric switch is a word with a broader meaning than push button:

push button: an electrical switch operated by pressing
electric switch: control consisting of a mechanical or electrical or electronic device for making or breaking or changing the connections in a circuit

Other hypernyms of push button include electrical switch, switch.

push button (noun)	electric switch (noun)
an electrical switch operated by pressing	control consisting of a mechanical or electrical or electronic device for making or breaking or changing the connections in a circuit