set off vs depart

set off and depart both are verbs.

Word	Noun	Adjective	Verb	Adverb
set off	No	No	Yes	No
depart	No	No	Yes	No

As verbs, set off and depart are synonyms defined as:

Other synonyms of set off include part, set forth, set out, start, start out, take off.

set off (verb)	depart (verb)
cause to burst with a violent release of energy	go away or leave
set in motion or cause to begin	depart for someplace
direct attention to, as if by means of contrast	wander from a direct or straight course
provoke or stir up	move away from a place into another direction
put in motion or move to act	remove oneself from an association with or participation in
depart for someplace	be at variance with; be out of line with
make up for