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spark plug
(redirected from Spark plugs)

Also found in: Dictionary/thesaurus, Encyclopedia, Wikipedia, Hutchinson

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a spark plug (American, informal)

a person with a lot of energy and ideas who encourages the other people in a group. The school's new principal is the spark plug in a team that includes parents, teachers and community.

See also: plug, spark

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spade
spare
spare no effort to
spare no expense
spared
spark
spark plug

Spark plugs
sparks fly
speak
speak for
speak for itself/themselves
speak mind
speak of the devil
speak out

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