Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “spark plug”

See all translations

spark plug

noun [C] uk   us  

spark plug noun [C] (ENGINE)

a device in an engine that produces an electrical spark that lights the fuel and makes the engine start

spark plug noun [C] (PERSON)

US a person who gives energy to an activity involving others: She's the spark plug of the team.
Translations of “spark plug”
in Chinese (Traditional) 引擎, 火星塞…
in Russian свеча зажигания…
in Turkish buji…
in Chinese (Simplified) 引擎, 火花塞…
in Polish świeca zapłonowa…
(Definition of spark plug from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of spark plug?
Add Cambridge dictionaries to your browser to your website

Definitions of “spark plug” in other dictionaries

Word of the Day

luck

the force that causes things, especially good things, to happen to you by chance and not as a result of your own efforts or abilities

Word of the Day

A certain je ne sais quoi: French words and phrases used in English

by Liz Walter,
January 21, 2015
It is an odd irony that the more sophisticated your use of English is, the more likely you are to use French words and phrases. Or, to be more accurate, ones you know to be French – words such as ballet, au pair, abattoir, fiancé, café, and restaurant are so entrenched in

Read More 

flower beard noun

January 19, 2015
a beard adorned with flowers And some of said beard-rockers are even turning it up a notch, painting trend on top of trend with what’s come to be known as ‘the flower beard.’

Read More