| brush up(verb, expression, clear, remove, brush) | |
| buffer | |
| burnish | |
| carboy | |
| cave(hole, hollow, gap) | |
| centrifuge tube(expression, idiom, receptacle) | |
| chaffy | |
| cleaner | |
| clear(verb, remove, brush) | |
| clear away(verb, expression, clear, remove, brush) | |
| clearance | |
| cleft(hole, hollow, gap) | |
| clothes drier(expression, idiom, dryness) | |
| concavity(noun, depression, impression, dip, void) | |
| crack | |
| crater(noun, depression, impression, dip, hollow) | |
| crevasse(hole, hollow, gap) | |
| crevice | |
| culture tube(expression, idiom, receptacle) | |
| deep(hole, hollow, gap) |
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| APA | Smart Define. (2015). vacuum thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/vacuum/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "vacuum thesaurus" https://smartdefine.org/vacuum/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2015, vacuum thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/vacuum/thesaurus/synonyms>. |
| MLA | Smart Define. "vacuum thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/vacuum/thesaurus/synonyms> |