12
plain(noun, flat, land, prairie, lowland)
7
field(noun, activity, territory, state, study)
6
heath(noun, flat, field, expanse, moor)
6
moor(noun, flat, field, expanse, prairie)
6
steppe(noun, flat, field, expanse, moor)
5
flatland(noun, flat, field, expanse, moor)
5
plateau(noun, flat, field, expanse, moor)
5
prairie(noun, flat, field, expanse, moor)
5
tundra(noun, flat, field, expanse, moor)
4
bailiwick(noun, activity, territory, state, study)
4
campo
4
domain(noun, activity, territory, state, study)
4
flat(noun, field, expanse, moor, lowland)
4
grassland(noun, flat, field, expanse, moor)
4
level(noun, area, flat, subject, field)
4
pampas(noun, prairie)
4
savanna(noun, prairie)
4
sphere(noun, territory, state, area, part)
4
veld(noun, prairie)
3
desert(noun, prairie)
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APASmart Define. (2016). champaign thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/champaign/thesaurus/synonyms
ChicagoSmart Define. 2016. "champaign thesaurus" https://smartdefine.org/champaign/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, champaign thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/champaign/thesaurus/synonyms>.
MLASmart Define. "champaign thesaurus" 1 March 2016. Web. 22 September 2026. <https://smartdefine.org/champaign/thesaurus/synonyms>