spark

A spark is a small, glowing particle that's either thrown off of a fire or that starts a fire. Your dad might tell everyone to stand back from the bonfire so they don't get burned by a spark.

Sparks are burning fragments that pop up off a fire, but they're also bright flashes, like the sparks of light reflecting off your sunglasses or electrical sparks given off by an engine. Some small thing that promises to grow larger is yet another kind of spark — you might notice a spark of anger within yourself when you see someone being treated unfairly, for example. The word spark comes from the Old English root spearca, "glowing or fiery particle thrown off."

Definitions of spark
1

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

Type of:
fragment
a piece broken off or cut off of something else

n a momentary flash of light

Synonyms:
flicker, glint
Type of:
flash
a sudden intense burst of radiant energy

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

“a spark of interest”
“a spark of decency”
Type of:
hint, suggestion, trace
a just detectable amount

n merriment expressed by a brightness or gleam or animation of countenance

Synonyms:
light, sparkle, twinkle
Type of:
verve, vitality
an energetic style
aspect, expression, face, facial expression, look
the feelings expressed on a person's face

n electrical conduction through a gas in an applied electric field

Synonyms:
arc, discharge, electric arc, electric discharge
Types:
brush discharge
discharge between electrodes creating visible streamers of ionized particles
Saint Elmo's fire, Saint Elmo's light, Saint Ulmo's fire, Saint Ulmo's light, St. Elmo's fire, corona, corona discharge, corposant, electric glow
an electrical discharge accompanied by ionization of surrounding atmosphere
flashover
an unintended electric discharge (as over or around an insulator)
Type of:
electrical conduction
the passage of electricity through a conductor

v emit or produce sparks

“A high tension wire, brought down by a storm, can continue to spark
Synonyms:
sparkle
Type of:
emit, give off, give out
give off, send forth, or discharge; as of light, heat, or radiation, vapor, etc.

v put in motion or move to act

Synonyms:
activate, actuate, set off, spark off, touch off, trigger, trigger off, trip
Type of:
initiate, pioneer
take the lead or initiative in; participate in the development of

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