object languageEnglishOxford Dictionary of Englishobject language /ˈɒbdʒɪkt ˌlaŋɡwɪdʒ , ˈɒbdʒɛkt ˌlaŋɡwɪdʒ / ▸ noun 1 a language described by means of another language. Compare with metalanguage,, target language 2 Computing a language into which a program is translated by means of a compiler or assembler.