Clean up
Clean up verb - To make a place neat and orderly by removing extraneous stuff.
Mass
Mass verb - To gradually form into a layer, pile, or mass.
Mutual synonyms
Both terms in one sentence
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Formerly the "mass production" site for the Manhattan Project's nuclear material, these days Hanford is essentially a massive government project to clean up everything.
Source: No OSHA Compliance -
Throw him into a mass of enemies, then follow a safe distance behind to clean up.
Source: Leeroy Jenkins - In Mass Effect, after Shepard becomes a Spectre, which allows them to serve as Judge, Jury, and Executioner, Admiral Hackett will repeatedly contact them about helping the Systems Alliance clean up things that that the Alliance have been involved with that aren't entirely legal.
Source: Plausible Deniability
Cite this Source
Mass and Clean up. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/clean_up/mass
Clean up & Mass. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/clean_up/mass>.
Mass or Clean up. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/clean_up/mass.
Google Ngram Viewer shows how "clean up" and "mass" have occurred on timeline