83 entries under noun topic. ×
| stem | |
| vent(break, cut, crack, opening) | |
| Chunnel | |
| axis(beam, rod, duct, chimney) | |
| axle(beam, rod, duct, chimney) | |
| barb(beam, rod, duct, chimney) | |
| column(beam, rod, duct, chimney) | |
| crack | |
| crater | |
| cut | |
| diaphysis(beam, rod, duct, chimney) | |
| helve(beam, rod, duct, chimney) | |
| hideaway(hole, warren) | |
| monolith(beam, rod, duct, chimney) | |
| obelisk(beam, rod, duct, chimney) | |
| pillar(beam, rod, duct, chimney) | |
| pinnacle(beam, rod, duct, chimney) | |
| sett(hole, warren) | |
| spindle(beam, rod, duct, chimney) |
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| APA | Smart Define. (2015). tunnel thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/tunnel/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "tunnel thesaurus" https://smartdefine.org/tunnel/thesaurus/synonyms (accessed September 30, 2026). |
| Harvard | Smart Define 2015, tunnel thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/tunnel/thesaurus/synonyms>. |
| MLA | Smart Define. "tunnel thesaurus" 10 April 2015. Web. 30 September 2026. <https://smartdefine.org/tunnel/thesaurus/synonyms> |