1. A momentary flash of light (synset 107426910)
  2. Merriment expressed by a brightness or gleam or animation of countenance (synset 104960557)
    "he had a sparkle in his eye"; "there's a perpetual twinkle in his eyes"
  3. Electrical conduction through a gas in an applied electric field (synset 111531956)
  4. A small but noticeable trace of some quality that might become stronger (synset 113795739)
    "a spark of interest"; "a spark of decency"
  5. Scottish writer of satirical novels (born in 1918) (synset 111329608)
  6. A small fragment of a burning substance thrown out by burning material or by friction (synset 109465245)
  1. Put in motion or move to act (synset 201647199)
    "trigger a reaction"; "actuate the circuits"
  2. Emit or produce sparks (synset 202772645)
    "A high tension wire, brought down by a storm, can continue to spark"

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