acceptation vs signified

acceptation and signified both are nouns.

Word	Noun	Adjective	Verb	Adverb
acceptation	Yes	No	No	No
signified	Yes	No	No	No

As nouns, signified is a hypernym of acceptation; that is, signified is a word with a broader meaning than acceptation:

acceptation: the accepted meaning of a word
signified: the meaning of a word or expression; the way in which a word or expression or situation can be interpreted

Other hypernyms of acceptation include sense.

acceptation (noun)	signified (noun)
the act of accepting with approval; favorable reception	the meaning of a word or expression; the way in which a word or expression or situation can be interpreted
the accepted meaning of a word
acceptance as true or valid