spark

definition: merriment expressed by a brightness or gleam or animation of countenance
example: I had a sparkle in my eye.
speech part: noun
synonyms: light
definition: a momentary flash of light
example:
speech part: noun
synonyms: flicker
definition: a small fragment of a burning substance thrown out by burning material or by friction
example:
speech part: noun
synonyms:
definition: electrical conduction through a gas in an applied electric field
example:
speech part: noun
synonyms: discharge
definition: a small but noticeable trace of some quality that might become stronger
example: a spark of interest
speech part: noun
synonyms:
definition: put in motion or move to act
example:
speech part: verb
synonyms: trip
definition: emit or produce sparks
example: A high tension wire, brought down by a storm, can continue to spark
speech part: verb
synonyms: sparkle

spark is explained and pronounced

How spark is being used?