set off vs stir up

set off and stir up both are verbs.

Word	Noun	Adjective	Verb	Adverb
set off	No	No	Yes	No
stir up	No	No	Yes	No

As verbs, set off and stir up are synonyms defined as:

Other synonyms of set off include incite, instigate.

set off (verb)	stir up (verb)
cause to burst with a violent release of energy	provoke or stir up
set in motion or cause to begin	change the arrangement or position of
direct attention to, as if by means of contrast	arouse or excite feelings and passions
provoke or stir up	try to stir up public opinion
put in motion or move to act
depart for someplace
make up for