MILIEU Meaning of MILIEU in English [ 'mi:ljə: , mɪ'ljə: ]■ noun ( plural ~x or ~s pronunciation same or -ljə:z ) a person's social environment.OriginC19: Fr., from mi 'mid' + lieu 'place'. Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004