9 entries under plain topic. ×

12
plateau(noun, flat, field, expanse)
10
prairie(noun, flat, field, expanse)
9
flat(noun, field, expanse, moor)
8
steppe(noun, flat, field, expanse)
5
flatland(noun, flat, field, expanse)
2
field(noun, flat, expanse, moor)
2
open country(noun, expression, flat, field)
2
expanse(noun, flat, field, moor)
0
wasteland(noun, waste, wild, void)
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APASmart Define. (2015). tundra thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/tundra/thesaurus/synonyms
ChicagoSmart Define. 2015. "tundra thesaurus" https://smartdefine.org/tundra/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, tundra thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/tundra/thesaurus/synonyms>.
MLASmart Define. "tundra thesaurus" 13 September 2015. Web. 25 September 2026. <https://smartdefine.org/tundra/thesaurus/synonyms>