107 entries under noun topic. ×
| canyon | |
| cardia | |
| cervix | |
| cervix uteri | |
| channel | |
| chimney | |
| crevice | |
| crossing | |
| defile | |
| diastema | |
| entrance | |
| escape | |
| escape hatch | |
| external orifice | |
| fenestra | |
| fireplace(fire, structure, hearth) | |
| fissure | |
| flue | |
| fontanel | |
| fontanelle |
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| APA | Smart Define. (2016). opening thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/opening/thesaurus/narrower |
| Chicago | Smart Define. 2016. "opening thesaurus" https://smartdefine.org/opening/thesaurus/narrower (accessed September 27, 2026). |
| Harvard | Smart Define 2016, opening thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/opening/thesaurus/narrower>. |
| MLA | Smart Define. "opening thesaurus" 26 February 2016. Web. 27 September 2026. <https://smartdefine.org/opening/thesaurus/narrower> |