60 entries under opening topic. ×

3
chimney(noun, beam, rod, duct)
3
flue(noun, beam, rod, duct)
3
hovel(noun, nature, break, cut, crack)
3
perforate(verb, sink, punch)
3
stick(noun, shaft)
3
way
2
lance(beam, rod)
2
pierce(verb, turn, produce, clean, discover)
2
prick(verb, sink, punch)
2
punch(verb, sink)
2
puncture(noun, verb, break, cut, crack)
2
riddle(verb, sink, punch)
2
shelter(noun, nature, break, cut, crack)
2
spear(beam, rod)
2
stave in(verb, expression, phrasal verb, concavity)
2
tap
1
adjutage
1
ajutage
1
enfilade
1
fistula
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APASmart Define. (2015). tunnel thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/tunnel/thesaurus/synonyms
ChicagoSmart Define. 2015. "tunnel thesaurus" https://smartdefine.org/tunnel/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, tunnel thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/tunnel/thesaurus/synonyms>.
MLASmart Define. "tunnel thesaurus" 10 April 2015. Web. 26 September 2026. <https://smartdefine.org/tunnel/thesaurus/synonyms>