Synonyms and Antonyms of cavern
a naturally formed underground chamber with an opening to the surface <a cavern with beautiful stalactites> Synonyms antre, cave, delve [archaic], grot, grottoRelated Words abyss, chasm, gulf, hollow; crawlway, gallery, subway, tunnel; excavation, mine, pit, shaft, well; bunker, dugout, foxhole; burrow, covert, den, hole, lair, lodge, shelter
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