52 entries under opening topic. ×
| chink(noun, break, cut, crack) | |
| cleft(noun, break, cut, crack) | |
| crater(noun, break, cut, crack) | |
| fracture(noun, break, cut, crack) | |
| gap(noun, break, cut, crack) | |
| keyhole(noun, break, cut, crack) | |
| vent(noun, break, cut, crack) | |
| channel(noun, slit) | |
| groove(noun, slit) | |
| interstice(noun, crack, crevice, nook) | |
| slit(noun, hole, perforation, orifice) | |
| time(noun, slit) |
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| APA | Smart Define. (2015). niche thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/niche/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "niche thesaurus" https://smartdefine.org/niche/thesaurus/synonyms (accessed September 27, 2026). |
| Harvard | Smart Define 2015, niche thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/niche/thesaurus/synonyms>. |
| MLA | Smart Define. "niche thesaurus" 10 April 2015. Web. 27 September 2026. <https://smartdefine.org/niche/thesaurus/synonyms> |