subterranean

== English == === Etymology === From Latin subterrāneus +‎ -an. Compare subterrane and subterraneous. === Pronunciation === IPA(key): /ˌsʌbtəˈɹeɪniən/ Hyphenation: sub‧ter‧ra‧ne‧an === Adjective === subterranean (not comparable) Below ground, under the earth, underground. (by extension) Secret, concealed. ==== Synonyms ==== (below the ground): subterraneous, subterrene, underground, hypogean ==== Derived terms ==== ==== Related terms ==== terranean ==== Translations ==== ==== See also ==== === Noun === subterranean (plural subterraneans) Someone or something that is subterranean. === References ===