actuate vs trigger off

actuate and trigger off both are verbs.

Word	Noun	Adjective	Verb	Adverb
actuate	No	No	Yes	No
trigger off	No	No	Yes	No

As verbs, actuate and trigger off are synonyms defined as:

Other synonyms of actuate include activate, set off, spark, spark off, touch off, trigger, trip.

actuate (verb)	trigger off (verb)
put in motion or move to act	put in motion or move to act
give an incentive for action