| dint | |
| drive(verb, turn, produce, clean, discover) | |
| furrow | |
| groove | |
| grub(verb, turn, produce, clean, discover) | |
| gutter | |
| hollow(noun, concavity) | |
| lance(opening, beam, rod) | |
| lodge | |
| opening | |
| pierce(verb, turn, produce, clean, discover) | |
| prick(verb, opening, sink, punch) | |
| punch(verb, opening, sink) | |
| puncture(noun, verb, break, cut, crack) | |
| riddle(verb, opening, sink, punch) | |
| rod(noun, beam, shaft) | |
| root(verb, turn, produce, clean, discover) | |
| shelter(noun, nature, break, cut, crack) | |
| spear(opening, beam, rod) | |
| stave in(verb, expression, phrasal verb, opening, concavity) |
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| APA | Smart Define. (2015). tunnel thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/tunnel/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "tunnel thesaurus" https://smartdefine.org/tunnel/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2015, tunnel thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/tunnel/thesaurus/synonyms>. |
| MLA | Smart Define. "tunnel thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/tunnel/thesaurus/synonyms> |