1
cave
1
cavern
1
dingle(noun, concavity)
1
flue(noun, opening)
1
adit(opening, conduit)
1
adjutage(opening, conduit)
1
ajutage(opening, conduit)
1
alcove
1
aorta
1
arch
1
bay
1
bottom
1
box canyon
1
canalize
1
canon
1
carve
1
chamfer
1
chap
1
check
1
chink
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APASmart Define. (2015). gully thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/gully/thesaurus/synonyms
ChicagoSmart Define. 2015. "gully thesaurus" https://smartdefine.org/gully/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, gully thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/gully/thesaurus/synonyms>.
MLASmart Define. "gully thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/gully/thesaurus/synonyms>