| 病院 | びょういん | hospital; clinic; doctor's office; doctor's surgery | n5 |
| 寺院 | じいん | Buddhist temple; religious building; church; cathedral | n1 |
| 入院 | にゅういん | hospitalization; hospitalisation | n4 |
| 書院 | しょいん | drawing room; study; writing alcove; publishing house | |
| 院 | いん | house of parliament (congress, diet, etc.); graduate school; postgraduate school; institution (often medical) | |
| 院長 | いんちょう | director (of a hospital, institution, academy, etc.); superintendent; rector | n1 |
| 退院 | たいいん | leaving hospital; discharge from hospital | n3 |
| 大学院 | だいがくいん | graduate school | n4 |
| 醫院 | いいん | doctor's office; doctor's surgery; clinic | n2 |
| 医院 | いいん | doctor's office; doctor's surgery; clinic | n1 |
| 衆議院 | しゅうぎいん | House of Representatives (lower house of the National Diet of Japan) | |
| 学院 | がくいん | institute; academy | |
| 學院 | がくいん | institute; academy | |
| 修道院 | しゅうどういん | monastery; convent; cloister; abbey | |
| 参議院 | さんぎいん | House of Councillors (upper house of the National Diet of Japan) | |
| 僧院 | そういん | monastery; temple | |
| 工学院大学 | こうがくいんだいがく | Kogakuin University | |
| 院内 | いんない | inside the House; inside the Diet; inside the hospital | |
| 奥の院 | おくのいん | inner sanctuary; inner shrine; sanctum sanctorum; holy of holies | |
| 上院 | じょういん | upper house; upper legislative chamber; senate | |
| 議院 | ぎいん | parliament; congress; diet; house (of parliament, etc.) | n2 |
| 国学院大学 | こくがくいんだいがく | Kokugakuin University | |
| 國學院大学 | こくがくいんだいがく | Kokugakuin University | |
| 國學院大學 | こくがくいんだいがく | Kokugakuin University | |
| 下院 | かいん | lower house; lower legislative chamber | |
| 大審院 | だいしんいん | Supreme Court (until 1947); Great Court of Cassation | |
| 両院 | りょういん | both houses of parliament; both upper and lower house | |
| 女院 | にょういん | woman bestowed with the title "in" (usu. the empress, imperial princesses, etc.) | |
| 産院 | さんいん | maternity hospital | |
| 枢密院 | すうみついん | Privy Council (abolished in 1947) | |
| 通院 | つういん | going to the hospital regularly for treatment; attending hospital as an outpatient | |
| 院主 | いんじゅ | head of a temple | |
| 衆院 | しゅういん | House of Representatives (lower house of the National Diet of Japan) | |
| 参院 | さんいん | House of Councillors (upper house of the National Diet of Japan) | |
| 別院 | べついん | branch temple | |
| 日本棋院 | にほんきいん | Nihon Kiin (national go organization of Japan) | |
| 衆院選 | しゅういんせん | House of Representatives election; lower house election | |
| 大学院生 | だいがくいんせい | graduate student; postgraduate student | n1 |
| 当院 | とういん | this institution; this parliament; this hospital; this clinic | |
| 青山学院大学 | あおやまがくいんだいがく | Aoyama Gakuin University | |
| 斎院 | さいいん | imperial princess who served as a priestess at Ise | |
| 院宣 | いんぜん | imperial command (decree); decree of cloistered emperor | |
| 院政 | いんせい | cloistered rule; government by cloistered emperors | n3 |
| 避病院 | ひびょういん | isolation hospital | |
| 女学院 | じょがくいん | girls college (esp. in names of Christian schools) | |
| 感化院 | かんかいん | reformatory; reform school | |
| 少年院 | しょうねんいん | reformatory; juvenile training school; reform school; youth detention center (centre) | |
| 会計検査院 | かいけいけんさいん | Board of Audit | |
| 開院 | かいいん | opening a new hospital, institution, temple, etc.; opening a hospital, institution, temple, etc. (for the day); opening of (a session of) the Imperial Diet | n3 |
| 整骨院 | せいこついん | osteopathic clinic | |
| 学習院大学 | がくしゅういんだいがく | Gakushuin University | |
| 院外 | いんがい | outside congress; non-parliamentary; non-hospital (e.g. dispensary, pharmacy, treatment); outside a hospital | |
| 禅院 | ぜんいん | Zen temple | n3 |
| 院本 | いんぽん | drama; playbook | |
| 書院造り | しょいんづくり | traditional style of Japanese residential architecture | |
| 来院 | らいいん | visit to a hospital, temple, school, etc. | |
| 翰林院 | かんりんいん | academy; institute | |
| 院議 | いんぎ | legislative decision | |
| 在院 | ざいいん | stay in hospital; hospital stay | |
| 院号 | いんごう | former emperor (or his empress, imperial princesses, etc.); posthumous Buddhist name containing the character "in" | |
| 人事院 | じんじいん | National Personnel Authority | |
| 参院選 | さんいんせん | House of Councillors election; upper house election | |
| 宝蔵院流 | ほうぞういんりゅう | Hozoin-ryu (school of sojutsu) | |
| 美容院 | びよういん | beauty parlour; beauty parlor; beauty salon; hairdressing salon | n3 |
| 接骨院 | せっこついん | bonesetter's clinic; orthopedic clinic | |
| 関西学院大学 | かんせいがくいんだいがく | Kwansei Gakuin University | |
| 貴族院 | きぞくいん | House of Peers (Japan, Meiji constitution); House of Lords (UK) | |
| 音楽院 | おんがくいん | conservatory; conservatoire; music academy; music school | |
| 高等法院 | こうとうほういん | High Court of Justice (UK); Parlement (France, during the ancien régime) | |
| 二院 | にいん | the two houses of legislature | |
| 入退院 | にゅうたいいん | entering and leaving a hospital; admission and discharge | |
| 救貧院 | きゅうひんいん | poorhouse; almshouse; workhouse | |
| 院外団 | いんがいだん | nonparliamentary party association | |
| 二院制 | にいんせい | bicameral system | |
| 入院中 | にゅういんちゅう | in the hospital; hospitalized | |
| 大寺院 | だいじいん | large temple | |
| 書院造 | しょいんづくり | traditional style of Japanese residential architecture | |
| 転院 | てんいん | transfer to a different hospital; hospital transfer | n5 |
| 閉院 | へいいん | closing down a hospital, institution, temple, etc.; shutting down; closing a hospital, institution, temple, etc. (for the day); adjourning a session of the Imperial Diet | |
| 立法院 | りっぽういん | legislature; legislative body | |
| 芸術院 | げいじゅついん | academy of arts; arts academy | |
| 院生 | いんせい | graduate student; insei; apprentice go professional | n3 |
| 両議院 | りょうぎいん | both houses of parliament | |
| 大院君 | たいいんぐん | Daewongun (honorary title for the father of the king in Joseon-era Korea; esp. in ref. to Heungseon Daewongun, father of Emperor Gojong) | |
| 愛知学院大学 | あいちがくいんだいがく | Aichi Gakuin University | |
| 一院制 | いちいんせい | unicameral system; unicameralism | |
| 大病院 | だいびょういん | large hospital; major hospital | |
| 孤児院 | こじいん | orphanage | |
| 院試 | いんし | graduate school entrance examination | n1 |
| 棋院 | きいん | go institution; go club; go hall | |
| 登院 | とういん | attendance at the House; attending a session of the Diet; attendance at an academy (of arts, etc.); attendance at an (academic) institute | |
| 窟院 | くついん | cave temple | |
| 院卒 | いんそつ | graduate-school graduate | |
| 元老院 | げんろういん | (Roman) senate | |
| 養老院 | ようろういん | home for the aged; old people's home | |
| 大学院卒 | だいがくいんそつ | postgraduate degree holder; holder of masters degree or doctorate | |
| 関西棋院 | かんさいきいん | Kansai Go Institution | |
| 日本学士院 | にほんがくしいん | Japan Academy | |
| 庫院 | くいん | kitchen-cum-office of a Zen temple or monastery, where meals are prepared and senior priests have their offices | |
| 本院 | ほんいん | this institution; the main institution | |