depart vs set off

depart and set off both are verbs.

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

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

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

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