Flatten
Flatten verb - To make free from breaks, curves, or bumps.
Make plumb and flatten are semantically related. In some cases you can use "Make plumb" instead a verb "Flatten".
Make plumb
Flatten and make plumb are semantically related. Sometimes you can use "Flatten" instead a verb phrase "Make plumb".
Mutual synonyms
Cite this Source
Make plumb and Flatten. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/flatten/make_plumb
Flatten & Make plumb. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/flatten/make_plumb>.
Make plumb or Flatten. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/flatten/make_plumb.
Google Ngram Viewer shows how "flatten" and "make plumb" have occurred on timeline