10 entries under hollow topic. ×
| hole(noun, opening, cave) | |
| cave(noun, retreat, dip, hole) | |
| grotto(noun, concavity, cave, convex) | |
| den(noun, retreat, dip, hole) | |
| pothole | |
| cavity | |
| subterrane | |
| fissure | |
| subterranean area(noun, expression) | |
| rock shelter(noun, expression) |
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| APA | Smart Define. (2015). cavern thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/cavern/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "cavern thesaurus" https://smartdefine.org/cavern/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2015, cavern thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/cavern/thesaurus/synonyms>. |
| MLA | Smart Define. "cavern thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/cavern/thesaurus/synonyms> |