attache Play /ˌædəˈʃeɪ//ˌæˈtæʃeɪ/nounA person on the staff of an ambassador, typically with a specialized area of responsibility.military attachésenvoy,diplomat,ambassador extraordinary,ambassador plenipotentiary,plenipotentiary,consul,attaché,chargé d’affaires,emissary,legate,nuncio,papal nuncio,representative,deputy SYNONYMS ambassador extraordinaryambassador plenipotentiaryattachéchargé d'affairesconsuldeputydiplomatemissaryenvoylegatenunciopapal nuncioplenipotentiaryrepresentative