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