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

シュタイナー学校[shutainaagakkou] Steiner school
ビジネススクール入学共通試験[bijinesusukuurunyuugakukyoutsuushiken] business school entrance test
ロボット工学[robottokougaku] robotics
位相幾何学[isoukikagaku] topology
易学[ekigaku] study of divination

遺伝学[idengaku] genetics
遺伝子工学[idenshikougaku] genetic engineering
医化学[ikagaku] medical chemistry
医科大学[ikadaigaku] medical school
医学[igaku] medical science

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

亜科[aka] subfamily
医科[ika] medical science
医科大学[ikadaigaku] medical school
家庭科[kateika] home economics
科名[kamei] family name

科する[kasuru] to inflict
科学[kagaku] science
科学院[kagakuin] science institute
科学技術[kagakugijutsu] science and technology

医院[iin] doctor's office (surgery)
医院長[iinchou] head doctor
育児院[ikujiin] orphanage
一院制[ichiinsei] unicameral system
院外[ingai] outside congress

院号[ingou] former emperor (or his empress, imperial princesses, etc.)
院政[insei] government by cloistered emperors
院生[insei] graduate student
院宣[inzen] imperial command (decree)
院長[inchou] director