spark plugnoun [ C ]uk /ˈspɑːk ˌplʌɡ/ us /ˈspɑːrk ˌplʌɡ/
spark plug noun [ C ] (ENGINE)
spark plug noun [ C ] (PERSON)
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(Definition of “spark plug” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)
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a type of heavy cloth that has a pattern woven into it that is the same colour as the cloth