医務[imu] medical affairs
医務室[imushitsu] doctor's office
外務[gaimu] foreign affairs
外務省[gaimushou] Ministry of Foreign Affairs
外務大臣[gaimudaijin] Minister for Foreign Affairs

義務[gimu] duty
義務教育[gimukyouiku] compulsory education
急務[kyuumu] urgent business
教務[kyoumu] school affairs
業務[gyoumu] business

この外[konohoka] besides
その外[sonota] etc.
ピントが外れる[pintogahazureru] to be out of focus
案外[angai] unexpectedly
もっての外[mottenohoka] absurd

以外[igai] with the exception of
意外[igai] unexpected
意想外[isougai] unexpected
域外[ikigai] outside the area
員外[ingai] non-membership

運輸省[unyushou] Ministry of Transport
外務省[gaimushou] Ministry of Foreign Affairs
各省[kakushou] each ministry
冠省[kanshou] Forgive me for dispensing with the preliminaries, but I hasten to inform you that...
帰省[kisei] homecoming

教育省[kyouikushou] Department of Education
省みる[kaerimiru] to look back (e.g. over shoulder or at the past)
厚生省[kouseishou] Ministry of Health and Welfare (now Ministry of Health, Labour and Welfare)
国防総省[kokubousoushou] National Military Establishment
国務省[kokumushou] State Department