acclamation vs approval

acclamation and approval both are nouns.

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

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

Other hypernyms of acclamation include commendation.

acclamation (noun)	approval (noun)
enthusiastic approval	the formal act of approving
	a message expressing a favorable opinion
	a feeling of liking something or someone good
	acceptance as satisfactory