83 entries under noun topic. ×
| burrow(verb, nature, animal, break) | |
| hole(verb, nature, opening, beam) | |
| mine(verb, hurt, ruin, destroy) | |
| den(nature, break, cut, crack) | |
| dig(verb, hurt, ruin, destroy) | |
| shaft(break, cut, line, crack) | |
| adit(opening, conduit, access, passageway) | |
| cave | |
| channel(verb, turn, produce, clean) | |
| passage(opening, conduit, passageway) | |
| tube(opening, conduit, passageway, hose) | |
| underpass(expression, passageway, ffgg) | |
| gouge(verb, cut, turn, produce) | |
| subway | |
| gallery | |
| pit(verb, break, turn, produce) | |
| scoop(verb, break, cut, turn) | |
| lair(break, cut, crack, opening) | |
| conduit(course, means, race, beam) | |
| ditch |
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| APA | Smart Define. (2015). tunnel thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/tunnel/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "tunnel thesaurus" https://smartdefine.org/tunnel/thesaurus/synonyms (accessed September 28, 2026). |
| Harvard | Smart Define 2015, tunnel thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/tunnel/thesaurus/synonyms>. |
| MLA | Smart Define. "tunnel thesaurus" 10 April 2015. Web. 28 September 2026. <https://smartdefine.org/tunnel/thesaurus/synonyms> |