egression vs emergence

egression and emergence both are nouns.

Word	Noun	Adjective	Verb	Adverb
egression	Yes	No	No	No
emergence	Yes	No	No	No

As nouns, egression and emergence are synonyms defined as:

egression and emergence: the act of coming (or going) out; becoming apparent

Other synonyms of egression include egress.

egression (noun)	emergence (noun)
the act of coming (or going) out; becoming apparent	the act of coming (or going) out; becoming apparent
	the act of emerging
	the becoming visible
	the gradual beginning or coming forth