1
: an act or instance of cleaning
The children helped with the cleanup.
2
: an exceptionally large profit
made a cleanup [=killing] when he sold his stocks
: being in the fourth position in the batting order of a baseball team
a cleanup hitter
cleanup
adverb
cleaned up; cleaning up; cleans up
1
: to make a spectacular profit in a business enterprise or a killing in speculation or gambling
2
: to become free of drug or alcohol addiction
I always cleaned up for tours. … By the end of the tour, I'm perfectly clean and should have stayed sober.—Keith Richards
Cite this Entry
“Cleanup.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cleanup. Accessed 7 Jul. 2026.
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