50 entries under expression topic. ×

8
underpass(noun, passageway, ffgg)
5
scoop out(verb, phrasal verb, turn, produce)
4
gouge out(verb, phrasal verb, weaken, sink)
3
dig out(verb, phrasal verb, hurt, ruin)
3
hollow out(verb, phrasal verb, hurt, ruin)
2
stave in(verb, phrasal verb, opening, concavity)
1
break up(verb, turn, produce, clean)
1
crawl space(noun, channel, passageway)
1
dig down(verb, turn, produce, clean)
1
eat away(hurt, ruin, challenge, weaken)
1
fork out(verb, turn, produce, clean)
1
go into(verb, turn, produce, clean)
1
hole in the wall(noun, idiom, channel, passageway)
1
knock the bottom out of(idiom, hurt, ruin, weaken)
1
poke full of holes(idiom, hurt, ruin, weaken)
1
root out(verb, turn, produce, clean)
1
turn over(verb, phrasal verb, turn, produce)
1
underground passage
1
water pipe(idiom, opening, conduit)
1
whittle away(hurt, ruin, challenge, weaken)
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APASmart Define. (2015). tunnel thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/tunnel/thesaurus/synonyms
ChicagoSmart Define. 2015. "tunnel thesaurus" https://smartdefine.org/tunnel/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, tunnel thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/tunnel/thesaurus/synonyms>.
MLASmart Define. "tunnel thesaurus" 10 April 2015. Web. 21 September 2026. <https://smartdefine.org/tunnel/thesaurus/synonyms>