spark off

Verb

1.

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

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