Knuckle down
Knuckle down verb - Work very hard, like a slave.
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Synonyms for Knuckle down
Work and knuckle down are semantically related in apply oneself topic. In some cases you can use "Work" instead a verb "Knuckle down".
Work
Work verb - To devote serious and sustained effort.
Usage example: the organization has worked for years to raise people's awareness of human rights issues
Knuckle down and work are semantically related in be employed topic. You can use "Knuckle down" instead a verb "Work".
Both terms in one sentence
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They spend 90% of the Hivebent arc bickering, scheming against, and attempting to murder each other, but eventually knuckle down and work together to fight (and defeat!) the Black King in their session.
Source: Teeth-Clenched Teamwork
Cite this Source
Work and Knuckle down. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/knuckle_down/work
Knuckle down & Work. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/knuckle_down/work>.
Work or Knuckle down. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/knuckle_down/work.
Google Ngram Viewer shows how "knuckle down" and "work" have occurred on timeline