significance vs signify

significance is a noun but signify is not a noun.

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

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

significance (verb)	signify (verb)
	convey or express a meaning
	make known with a word or signal
	denote or connote