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

お大事に[odaijini] take care of yourself
暗黒大陸[ankokutairiku] Dark Continent (i.e. Africa)
伊勢大神宮[isedaijinguu] the Grand Shrines of Ise
伊勢大廟[isetaibyou] the Grand Shrines of Ise
偉大[idai] greatness

医科大学[ikadaigaku] medical school
医大[idai] medical university
井の中の蛙大海を知らず[inonakanokawazutaikaiwoshirazu] parochial
一大[ichidai] one large ...
一大事[ichidaiji] serious affair

くつくつ法師[kutsukutsuboushi] Meimuna opalifera (species of cicada)
つくつく法師[tsukutsukuboushi] Meimuna opalifera (species of cicada)
エライザ法[eraizahou] enzyme-linked immunoSorbent assay (virus detection method)
ケーソン工法[keesonkouhou] caisson method
シールド工法[shiirudokouhou] shield method

モンテカルロ法[montekarurohou] Monte Carlo method
悪法[akuhou] bad law
暗号化手法[angoukashuhou] cryptography
暗号手法[angoushuhou] cryptography
違法[ihou] illegal

遺臣[ishin] surviving retainer
一夜大臣[ichiyadaijin] overnight millionaire
右大臣[udaijin] Minister of the Right (official in Nara and Heian periods)
運輸大臣[unyudaijin] Minister of Transport
下臣[kashin] low-rank retainer

家臣[kashin] vassal
外務大臣[gaimudaijin] Minister for Foreign Affairs
旧臣[kyuushin] old retainer
君臣[kunshin] ruler and ruled
建設大臣[kensetsudaijin] Minister of Construction