Noun:
1: flicker, glint, spark a momentary flash of light
2: light, spark, 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: spark, arc, discharge, electric arc, electric discharge 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: muriel sarah spark, muriel spark, spark, dame 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: set off, touch off, spark off, trigger, spark, actuate, trip, trigger off, activate 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"