Thesaurus
present tense third-person singular of knuckle down (to)
Synonyms & Antonyms of knuckles down (to)
as in focuses (on), concentrates (on)
Synonyms & Near Synonyms for knuckles down (to)
Antonyms & Near Antonyms for knuckles down (to)
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Merriam-Webster unabridged
Share knuckles down (to)