These example sentences are selected automatically from various online news sources to reflect current usage of the word 'spark plug.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
1903
: a part of an engine that produces a spark that makes the fuel burn
See words that rhyme with spark plug Spanish Central: Translation of spark plug Nglish: Translation of spark plug for Spanish speakers Britannica.com: Encyclopedia article about spark plug
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