43 entries under noun topic. ×

19
hole(opening, hollow, cave)
18
cave(retreat, dip, hole, hollow)
11
hollow(adjective, area, empty)
8
grotto(hollow, concavity, cave, convex)
7
cove(concavity, cave, inlet, niche)
5
den(retreat, dip, hole, hollow)
3
burrow
2
pothole
1
cavity
1
lair
1
glen
1
subterrane
1
dip
1
indentation
1
pit
1
socket(dip, bottom)
1
valley
1
vault
1
fissure
1
glade
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APASmart Define. (2015). cavern thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/cavern/thesaurus/synonyms
ChicagoSmart Define. 2015. "cavern thesaurus" https://smartdefine.org/cavern/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, cavern thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/cavern/thesaurus/synonyms>.
MLASmart Define. "cavern thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/cavern/thesaurus/synonyms>