egress vs beginning

egress and beginning both are nouns.

Word	Noun	Adjective	Verb	Adverb
egress	Yes	No	Yes	No
beginning	Yes	Yes	No	No

As nouns, beginning is a hypernym of egress; that is, beginning is a word with a broader meaning than egress:

egress (noun)	beginning (noun)
the act of coming (or going) out; becoming apparent	the act of starting something
(astronomy) the reappearance of a celestial body after an eclipse	the first part or section of something
the becoming visible	the event consisting of the start of something
	the place where something begins, where it springs into being
	the time at which something is supposed to begin

egress (adjective)	beginning (adjective)
	serving to begin

egress (verb)	beginning (verb)
come out of