Meaning of “be firing on all cylinders” in the English Dictionary

british dictionary

"be firing on all cylinders" in British English

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be firing on all cylinders

to be operating as powerfully and effectively as possible:

Dawson will be firing on all cylinders after two months of fitness training.

(Definition of “be firing on all cylinders” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

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