Plain
Plain noun - A broad area of level or rolling treeless country.
Sump
Sump noun - A well or other hole in which water has collected.
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Synonyms for Sump
Mutual synonyms
Cite this Source
Sump and Plain. (2016). Retrieved 2026, August 02, from https://thesaurus.plus/related/plain/sump
Plain & Sump. N.p., 2016. Web. 02 Aug. 2026. <https://thesaurus.plus/related/plain/sump>.
Sump or Plain. 2016. Accessed August 02, 2026. https://thesaurus.plus/related/plain/sump.
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