HYPOGEUM Meaning of HYPOGEUM in English [ ˌhʌɪpə(ʊ)'dʒi:əm ]■ noun ( plural hypogea ) an underground chamber.OriginC17: from L., from Gk hupogeion , neut. of hupogeios 'underground'. Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004