n. Function: noun
a usually natural underground chamber FF1C; the limestone caves of Kentucky FF1E;
Synonyms: cavern, grotto, subterrane, subterranean
n. Function: noun
a usually natural underground chamber FF1C; the limestone caves of Kentucky FF1E;
Synonyms: cavern, grotto, subterrane, subterranean
Merriam Webster. Collegiate thesaurus English dictionary. Английский энциклопедический толковый словарь тезауруса. 2012