actuate vs touch off

actuate and touch off both are verbs.

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

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

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

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