| breach(noun, break, cut, crack, opening) | |
| bullet-hole | |
| bunghole | |
| cavity(noun, break, cut, crack, opening) | |
| chasm(noun, break, cut, crack, opening) | |
| chink(noun, break, cut, crack, opening) | |
| cleft(noun, break, cut, crack, opening) | |
| cranny(noun, break, cut, crack, opening) | |
| crater(noun, break, cut, crack, opening) | |
| crevice(noun, hole, perforation, orifice, grommet) | |
| cringle | |
| cut(noun, break, crack, opening, void) | |
| deadeye | |
| depression(noun, break, cut, crack, opening) | |
| dip(noun, break, cut, crack, opening) | |
| excavation(noun, break, cut, crack, opening) | |
| eye | |
| eyehole | |
| fissure(noun, break, cut, crack, opening) | |
| fontanel |
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| APA | Smart Define. (2015). keyhole thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/keyhole/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "keyhole thesaurus" https://smartdefine.org/keyhole/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2015, keyhole thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/keyhole/thesaurus/synonyms>. |
| MLA | Smart Define. "keyhole thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/keyhole/thesaurus/synonyms> |