Noun:
1: spark, glint, flicker a momentary flash of light
2: spark, light, sparkle, twinkle merriment expressed by a brightness or gleam or animation of countenance; "he had a sparkle in his eye"; "there's a perpetual twinkle in his eyes"
3: electric arc, discharge, arc, electric discharge, spark electrical conduction through a gas in an applied electric field
4: spark a small but noticeable trace of some quality that might become stronger; "a spark of interest"; "a spark of decency"
5: dame muriel spark, muriel sarah spark, spark, muriel spark Scottish writer of satirical novels (born in 1918)
6: spark a small fragment of a burning substance thrown out by burning material or by friction
Verb:
1: trip, activate, trigger off, trigger, touch off, actuate, spark, spark off, set off put in motion or move to act; "trigger a reaction"; "actuate the circuits"
2: spark, sparkle emit or produce sparks; "A high tension wire, brought down by a storm, can continue to spark"