trigger off

Verb

1.

trigger off - put in motion or move to act; "trigger a reaction"; "actuate the circuits" Synonyms: activate, actuate, set off, spark, spark off, touch off, trigger, trip

activate, actuate, come about, fall out, go on, hap, happen, initiate, occur, pass, pass off, pioneer, set off, spark, spark off, take place, touch off, trigger, trip