20 entries under concavity topic. ×
| hollow(noun, space, hole, pocket, cavity) | |
| cavity(noun, area, space, hole, hollow) | |
| depression(noun, space, hole, hollow, pocket) | |
| pit(noun, space, hole, hollow, pocket) | |
| alveolus | |
| follicle | |
| lacuna | |
| concavity | |
| dent(noun, space, hole, hollow, pocket) | |
| dip | |
| dimple | |
| dint | |
| indentation | |
| intaglio | |
| trough | |
| excavation | |
| hollowness | |
| honeycomb | |
| furrow | |
| strip mine(expression, idiom) |
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| APA | Smart Define. (2015). sinus thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/sinus/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "sinus thesaurus" https://smartdefine.org/sinus/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2015, sinus thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/sinus/thesaurus/synonyms>. |
| MLA | Smart Define. "sinus thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/sinus/thesaurus/synonyms> |