內
부수: 入
획수: 4획
內 simply means inside.

內 = 冂 + 入
X = semantic + semantic/phonetic
• 冂 depicts a building (akin to 宀) and simply means ‘building’. Specifically, it depicts a hall and relates to 堂.
• 入 depicts a wedge and means ‘to enter’.
Evolution:
內 = to enter a building ➔ to enter ➔ inside
Mnemonic
內 can be imagined as a person 人 entering 入 a building 冂. See additional details below.
Vocab
內容 | 내용 | content; details; story |
內部 | 내부 | inner part; interior |
室內 | 실내 | indoors |
市內 | 시내 | inner city |
國內 | 국내 | domestic; inside the country |
校內 | 교내 | school campus; being in school |
內服 | 내복 | thermal underwear |
內陸 | 내륙 | inland |
內科 | 내과 | internal medicine |
內耳 | 내이 | the inner ear |
內戰 | 내전 | a civil war |
內閣 | 내각 | Cabinet (government) |
內幕 | 내막 | inside knowledge |
案內 | 안내 | guidance |
以內 | 이내 | within a certain range |
Additional notes
In Chinese and Japanese, 內 is simplified to 内: where the wedge 入 becomes a person 人.
Other resources
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Bibliography
— Daum 사전, [s.v. 內].
— Grant, B.K. (1982). A Guide To Korean Characters: Reading and Writing Hangul and Hanja, [s.v. 60]. Seoul: Hollym.
— Outlier Dictionary of Chinese Characters, [s.v. 內, 冂, 入].
— Seely, C., Henshall, K.G., & Fan, J. (2016). The Complete Guide to Japanese Kanji: Remembering and Understanding the 2,136 Standard Japanese Characters, [s.v. 207]. Singapore: Tuttle Publishing.