spark - noun

a momentary flash of light

merriment expressed by a brightness or gleam or animation of countenance

electrical conduction through a gas in an applied electric field

a small but noticeable trace of some quality that might become stronger

Scottish writer of satirical novels (born in 1918)

a small fragment of a burning substance thrown out by burning material or by friction

spark - verb

• put in motion or move to act
• emit or produce sparks

spark - thesaurus

activate   actuate   arc   discharge   flicker   glint   light   sparkle   trigger   trip   twinkle