16 entries under surface topic. ×

10
ground(noun, area, base, land, foundation)
8
dry land(noun, expression, land, desert)
7
land(noun, area, desert, ground)
4
dirt(noun, area, field, land)
4
soil(noun, area, field, land)
4
terrain(noun, area, land, desert)
2
clay(land, desert, ground, soil)
2
dust(noun, land, desert, ground)
2
shore(area, field, land, desert)
2
sod(noun, area, field, land)
2
topsoil(land, desert, ground, soil)
1
loam(noun, area, field, land)
1
muck(land, desert, ground, soil)
1
mud(desert, ground, soil, earth)
1
sand(noun, land, desert, ground)
1
turf(noun, land, desert, ground)
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APASmart Define. (2015). terra firma thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/terra_firma/thesaurus/synonyms
ChicagoSmart Define. 2015. "terra firma thesaurus" https://smartdefine.org/terra_firma/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, terra firma thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/terra_firma/thesaurus/synonyms>.
MLASmart Define. "terra firma thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/terra_firma/thesaurus/synonyms>