31 entries under tunnel topic. ×
| spire(noun, cover, top, point, heaven) | |
| shaft(noun, something, duct, chimney) | |
| obelisk(noun, top, beam, peak) | |
| pole(limit, edge, beam, summit, boundary) | |
| column(noun, beam, rod, duct) | |
| pillar(noun, beam, rod, duct) | |
| arrow(beam, rod) | |
| axis(noun, beam, rod, duct) | |
| axle(noun, beam, rod, duct) | |
| bar(beam, rod) | |
| barb(noun, beam, rod, duct) | |
| beam | |
| chimney(noun, beam, rod, duct) | |
| conduit(noun, beam, rod, duct) | |
| cylinder(beam, rod) | |
| diaphysis(noun, beam, rod, duct) | |
| duct(noun, beam, rod, chimney) | |
| flue(noun, beam, rod, duct) | |
| handle(beam, rod) | |
| helve(noun, beam, rod, duct) |
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| APA | Smart Define. (2015). pinnacle thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/pinnacle/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "pinnacle thesaurus" https://smartdefine.org/pinnacle/thesaurus/synonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2015, pinnacle thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/pinnacle/thesaurus/synonyms>. |
| MLA | Smart Define. "pinnacle thesaurus" 10 April 2015. Web. 26 September 2026. <https://smartdefine.org/pinnacle/thesaurus/synonyms> |