lexical meaning vs significance

lexical meaning and significance both are nouns.

Word	Noun	Adjective	Verb	Adverb
lexical meaning	Yes	No	No	No
significance	Yes	No	No	No

As nouns, significance is a hypernym of lexical meaning; that is, significance is a word with a broader meaning than lexical meaning:

lexical meaning: the meaning of a content word that depends on the nonlinguistic concepts it is used to express
significance: the message that is intended or expressed or signified

Other hypernyms of lexical meaning include import, meaning, signification.

lexical meaning (noun)	significance (noun)
the meaning of a content word that depends on the nonlinguistic concepts it is used to express	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