knuckle down Meaning in the Cambridge English Dictionary Cambridge dictionaries logo

Meaning of “knuckle down” in the English Dictionary

(Definition of knuckle down from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"knuckle down" in American English

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knuckle down

 /ˌnʌk·əl ˈdɑʊn/ infml
phrasal verb with knuckle verb
to ​startworking hard: You’re going to have to knuckle down and ​catch up on ​yourschoolwork.
(Definition of knuckle down from the Cambridge Academic Content Dictionary © Cambridge University Press)
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