Knuckle down
Knuckle down verb - Work very hard, like a slave.
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Synonyms for Knuckle down
Tackle and knuckle down are semantically related. In some cases you can use "Tackle" instead a verb "Knuckle down".
Tackle
Tackle verb - To start work on energetically.
Usage example: once I clean the kitchen, I think I'll tackle the bathroom
Knuckle down and tackle are semantically related. Sometimes you can use "Knuckle down" instead a verb "Tackle".
Cite this Source
Tackle and Knuckle down. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/knuckle_down/tackle
Knuckle down & Tackle. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/knuckle_down/tackle>.
Tackle or Knuckle down. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/knuckle_down/tackle.
Google Ngram Viewer shows how "knuckle down" and "tackle" have occurred on timeline