36 entries under opening topic. ×
| eyelet(noun, break, cut, crack) | |
| mousehole | |
| peephole | |
| hole(noun, dump, shack, slum) | |
| loophole | |
| pigeonhole | |
| pinhole | |
| porthole | |
| vent(noun, break, cut, crack) | |
| dimple(noun, break, cut, crack) | |
| foramen(noun, break, cut, crack) | |
| niche(noun, break, cut, crack) | |
| aperture(noun, break, cut, crack) | |
| breach(noun, break, cut, crack) | |
| cavity(noun, break, cut, crack) | |
| chasm(noun, break, cut, crack) | |
| chink(noun, break, cut, crack) | |
| cleft(noun, break, cut, crack) | |
| cranny(noun, break, cut, crack) | |
| crater(noun, break, cut, crack) |
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| APA | Smart Define. (2015). keyhole thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/keyhole/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "keyhole thesaurus" https://smartdefine.org/keyhole/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2015, keyhole thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/keyhole/thesaurus/synonyms>. |
| MLA | Smart Define. "keyhole thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/keyhole/thesaurus/synonyms> |