Synonyms|422Antonyms|2|Broader|18Narrower|9Related|100
6
gallery(noun, opening)
6
pit(noun, verb, break, turn, produce)
6
scoop(noun, verb, break, cut, turn)
6
undermine(verb, turn, produce, clean, challenge)
5
artery
5
delve(verb, weaken, dig, undermine, mine)
5
lair(noun, break, cut, crack, opening)
5
scoop out(verb, expression, phrasal verb, turn, produce)
5
sewer
4
conduit(noun, course, means, race, beam)
4
depress(verb, turn, produce, clean, discover)
4
ditch(noun, conduit)
4
drill(verb, turn, produce, clean, discover)
4
duct(noun, course, means, race, beam)
4
excavation
4
ferry(noun, method)
4
ford(noun, method)
4
funnel(noun, opening, conduit)
4
gouge out(verb, expression, phrasal verb, weaken, sink)
4
gully(noun, opening, conduit)
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APASmart Define. (2015). tunnel thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/tunnel/thesaurus/synonyms
ChicagoSmart Define. 2015. "tunnel thesaurus" https://smartdefine.org/tunnel/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, tunnel thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/tunnel/thesaurus/synonyms>.
MLASmart Define. "tunnel thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/tunnel/thesaurus/synonyms>