go out vs depart

go out and depart both are verbs.

Word	Noun	Adjective	Verb	Adverb
go out	No	No	Yes	No
depart	No	No	Yes	No

As verbs, depart is a hyponym of go out; that is, depart is a word with a more specific, narrower meaning than go out:

go out (verb)	depart (verb)
become extinguished	go away or leave
move out of or depart from	depart for someplace
take the field	wander from a direct or straight course
leave the house to go somewhere	move away from a place into another direction
date regularly; have a steady relationship with	remove oneself from an association with or participation in
go out of fashion; become unfashionable	be at variance with; be out of line with