approval vs acceptance

approval and acceptance both are nouns.

Word	Noun	Adjective	Verb	Adverb
approval	Yes	No	No	No
acceptance	Yes	No	No	No

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

As nouns, acceptance is a hypernym of approval; that is, acceptance is a word with a broader meaning than approval:

approval (noun)	acceptance (noun)
the formal act of approving	the act of accepting with approval; favorable reception
a message expressing a favorable opinion	the act of taking something that is offered
a feeling of liking something or someone good	a disposition to tolerate or accept people or situations
acceptance as satisfactory	the mental attitude that something is believable and should be accepted as true
	(contract law) words signifying consent to the terms of an offer (thereby creating a contract)
	a time draft drawn on and accepted by a bank
	the state of being acceptable and accepted