10
ground(noun, area, base, land, foundation)
8
dry land(noun, expression, land, surface, desert)
7
earth(noun, area, field, land, ground)
7
land(noun, area, surface, desert, ground)
5
solid ground(noun, ground)
4
Earth
4
dirt(noun, area, field, land, surface)
4
soil(noun, area, field, land, surface)
4
terrain(noun, area, land, surface, desert)
3
terra(noun, ground, dust, planet, shore)
2
acres(area, field, soil)
2
bed
2
clay(land, surface, desert, ground, soil)
2
country(area, field, soil)
2
dust(noun, land, surface, desert, ground)
2
fundamental
2
grounds(area, field, soil)
2
groundwork
2
real estate(noun, expression, area, field, land)
2
region(area, spread, field, soil)
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APASmart Define. (2015). terra firma thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/terra_firma/thesaurus/synonyms
ChicagoSmart Define. 2015. "terra firma thesaurus" https://smartdefine.org/terra_firma/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, terra firma thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/terra_firma/thesaurus/synonyms>.
MLASmart Define. "terra firma thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/terra_firma/thesaurus/synonyms>