Knuckle down
Knuckle down verb - Work very hard, like a slave.
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Synonyms for Knuckle down
Scratch and knuckle down are semantically related. In some cases you can use "Scratch" instead a verb "Knuckle down".
Scratch
Scratch verb - To damage by rubbing against a sharp or rough surface.
Knuckle down and scratch are semantically related. Sometimes you can use "Knuckle down" instead a verb "Scratch".
Cite this Source
Scratch and Knuckle down. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/knuckle_down/scratch
Knuckle down & Scratch. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/knuckle_down/scratch>.
Scratch or Knuckle down. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/knuckle_down/scratch.
Google Ngram Viewer shows how "knuckle down" and "scratch" have occurred on timeline