The Meaning of nyūin [入院] In Japanese
入院
にゅういん
Romaji: nyūin
N5
What does 入院 mean?
Translation and Meaning
hospitalization, admission to hospital
Definition
入院 means being admitted to a hospital for medical care, or the period during which one stays there for treatment.
Type
noun (suru-verb)
Stroke Order
Meanings
- Hospital admission as a formal process of entering a medical facility
- The on-going state or period of being in hospital, represented by 常用の表現 in Japanese
- Related terms such as 入院する and 入院費 that describe actions and costs associated with hospitalization
Etymology
nyū from 入 on-reading; in from 院 on-reading; combined to form nyūin, a Sino-Japanese compound.
Origin
Meiji era onward; modernization of healthcare introduced formal hospital care and the term 入院 entered Japanese medical language as hospitals expanded.
Composition
- 入: enter, to go inside
- 院: institution, hospital, clinic
- Combination: enter + institution yields the concept of entering an institution to receive care
Usage
Used in medical contexts to indicate admission to a hospital, in patient records, and in everyday speech as 入院する; common collocations include related forms and costs associated with hospital care.
💡 Tips
Mnemonic: imagine a person stepping into a hospital doorway; the first kanji suggests entering, the second depicts a building or institution, so 入院 literally maps to entering an institution for care.
Variations
- 入院中 nyūin-chū — currently hospitalized
- 入院する nyūin-suru — to be hospitalized
- 入院費 nyūin-hi — hospitalization costs
- 退院 taiin — discharge from hospital
Words with the same Kanji
Example Phrases
-
先日、私の叔父は大病で入院して長く過ごした。Senjitsu, watashi no oji wa daibyō de nyūin shite nagaku sugoshita.The other day, my uncle was hospitalized for a serious illness and spent a long time.Lista:
- 先日 (senjitsu) – the other day
- 私の (watashi no) – my
- 叔父は (oji wa) – uncle
- 大病で (daibyō de) – due to a serious illness
- 入院して (nyūin shite) – being hospitalized
- 長く (nagaku) – long
- 過ごした (sugoshita) – spent
Here 「入院」 is a noun meaning hospitalization; it is used with して to form 入院して (being hospitalized) and with で to indicate the reason (大病で).

