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