The Oxford Thesaurus An A-Z Dictionary of Synonyms - languagen.

1) speech, tongue, idiom, parlance, dialect, idiolect, patois, jargon, cant, argot, vernacular, Colloq lingo: How many languages do you speak? 2 communication, intercourse, interaction: Karl von Frisch studied the language of the bees. 3) jargon, lingua franca, vocabulary, terminology, vernacular, Colloq lingo: In medical language, a head cold is called 'coryza'. 4) wording, words, phrasing, phraseology, style, diction: Guarantees, insurance policies, and other such things should be written in simple language.