Definition of 'spark'

Noun

1. a momentary flash of light
      Synonyms: flicker glint
2. 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"
      Synonyms: sparkle twinkle light
3. electrical conduction through a gas in an applied electric field
      Synonyms: discharge arc electric arc electric discharge
4. a small but noticeable trace of some quality that might become stronger; "a spark of interest"; "a spark of decency"
5. Scottish writer of satirical novels (born in 1918)
      Synonyms: Muriel Spark Dame Muriel Spark Muriel Sarah Spark
6. a small fragment of a burning substance thrown out by burning material or by friction

Verb

1. put in motion or move to act; "trigger a reaction"; "actuate the circuits"
      Synonyms: trip actuate trigger activate set off spark off trigger off touch off
2. emit or produce sparks; "A high tension wire, brought down by a storm, can continue to spark"
      Synonyms: sparkle

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