60 entries under opening topic. ×
| gore | |
| gut | |
| impale | |
| path | |
| pink | |
| retreat(noun, break, cut, crack) | |
| smokestack | |
| spike | |
| spit | |
| stab | |
| thoroughfare | |
| transfix | |
| transpierce | |
| tubule | |
| vent(noun, break, cut, crack) | |
| water pipe(expression, idiom, conduit) | |
| air pipe(expression, idiom) | |
| empierce | |
| ostium | |
| vessel |
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| APA | Smart Define. (2015). tunnel thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/tunnel/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "tunnel thesaurus" https://smartdefine.org/tunnel/thesaurus/synonyms (accessed September 27, 2026). |
| Harvard | Smart Define 2015, tunnel thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/tunnel/thesaurus/synonyms>. |
| MLA | Smart Define. "tunnel thesaurus" 10 April 2015. Web. 27 September 2026. <https://smartdefine.org/tunnel/thesaurus/synonyms> |