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Verb: spark off
  1. Put in motion, initiate (a device, reaction, circuit, etc)
    - actuate, trigger, activate, set off, spark, trigger off, touch off
  2. Cause to start, provoke or initiate (usually something negative or violent)
    "spark off a huge argument";
    - touch off, spark, set off, trigger

Derived forms: sparked off, sparking off, sparks off

Type of: initiate, pioneer