6 entries under opening topic. ×
| mouth(noun, entrance, outlet, door) | |
| firth(noun, box, passage, entrance) | |
| embouchement(noun, box, entrance, cavity) | |
| fly trap(noun, expression, box, entrance) | |
| gills(noun, box, entrance, cavity) | |
| jaws(noun, box, entrance, cavity) |
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| APA | Smart Define. (2015). delta thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/delta/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "delta thesaurus" https://smartdefine.org/delta/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2015, delta thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/delta/thesaurus/synonyms>. |
| MLA | Smart Define. "delta thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/delta/thesaurus/synonyms> |