76 entries under opening topic. ×
| puncture(space, scratch, wound, hole) | |
| shaft | |
| slash(space, scratch, wound, hole) | |
| vessel(noun, channel, cylinder, pipe) | |
| adjutage | |
| air pipe(expression, idiom) | |
| ajutage | |
| entrance hall(noun, expression, path, entry) | |
| ostium | |
| pit | |
| smokestack | |
| spout(noun, flow, channel, cylinder) | |
| staircase(entry, doorway) | |
| tap | |
| threshold(entry, doorway) | |
| tubule |
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| APA | Smart Define. (2016). passage thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/passage/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "passage thesaurus" https://smartdefine.org/passage/thesaurus/synonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2016, passage thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/passage/thesaurus/synonyms>. |
| MLA | Smart Define. "passage thesaurus" 30 March 2016. Web. 26 September 2026. <https://smartdefine.org/passage/thesaurus/synonyms> |