2
airship(noun, aircraft)
2
alike(adjective, calm, direct, smooth, right)
2
automobile
2
bird(noun, informal, aircraft)
2
bus
2
clear(verb, adjective, press, level, flush)
2
compress(verb, smooth, crush, level, smash)
2
compressed
2
condition(noun, level)
2
constant(adjective, calm, smooth, right, flat)
2
cream
2
crowbar(noun, instrument, tool)
2
dead level(expression, idiom, horizontality)
2
deflate(verb, smooth, crush, level, smash)
2
discoid(adjective, flatness)
2
drag
2
dress
2
earth
2
equalize(verb, smooth, crush, smash, match)
2
extension(noun, level)
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APASmart Define. (2015). plane thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/plane/thesaurus/synonyms
ChicagoSmart Define. 2015. "plane thesaurus" https://smartdefine.org/plane/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, plane thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/plane/thesaurus/synonyms>.
MLASmart Define. "plane thesaurus" 24 October 2015. Web. 21 September 2026. <https://smartdefine.org/plane/thesaurus/synonyms>