Foreign and Commonwealth Office
noun uk/ˌfɒr.ən ən ˈkɒm.ən.welθ ˌɒf.ɪs/ us/ˌfɔːr.ən ən ˈkɑː.mən.welθ ˌɑː.fɪs/ (also Foreign Office); (abbreviation FCO)
(英国)外交和英联邦事务部,外交部
the UK government department that deals with relationships with other countries and with British people travelling to other countries