egression vs human activity

egression and human activity both are nouns.

Word	Noun	Adjective	Verb	Adverb
egression	Yes	No	No	No
human activity	Yes	No	No	No

As nouns, human activity is a hypernym of egression; that is, human activity is a word with a broader meaning than egression:

Other hypernyms of egression include act, deed, human action.

egression (noun)	human activity (noun)
the act of coming (or going) out; becoming apparent	something that people do or cause to happen