significance vs signification

significance and signification both are nouns.

Word	Noun	Adjective	Verb	Adverb
significance	Yes	No	No	No
signification	Yes	No	No	No

As nouns, significance and signification are synonyms defined as:

significance and signification: the message that is intended or expressed or signified

Other synonyms of significance include import, meaning.

significance (noun)	signification (noun)
the quality of being significant	the message that is intended or expressed or signified
a meaning that is not expressly stated but can be inferred
the message that is intended or expressed or signified