校
부수: 木
획수: 10획
校 has the meanings to verify and school.

校 = 木 + 交
X = semantic + phonetic
• 木 depicts a tree and represents ‘wood’.
• 交 depicts twisted threads, but is used for its sound.
校 came to mean ‘school’ via a sound loan. The character originally meant ‘pillory’ – a wooden headlock used for torture.
Evolution:
校 = pillory ➔ borrowed use ➔ to verify
校 = pillory ➔ borrowed use ➔ school
Mnemonic
The crisscrossed threads in 交 can symbolise ‘interconnections’ and ‘exchanging ideas’. Schools 校 are essentially places where people connect and exchange knowledge. Use 木 to imagine the wooden desks etc in a classroom.
Alternatively, imagine schools 校 as places where students are tied 交 to their desks 木 for state-enforced mind control.
Vocab
校正 | 교정 | correction; proofreading |
校訂 | 교정 | proofreading |
學校 | 학교 | school |
校庭 | 교정 | school grounds |
校長 | 교장 | principal; headmaster |
校服 | 교복 | school uniform |
校時 | 교시 | class period |
校則 | 교칙 | school regulations |
校內 | 교내 | being in school; school grounds |
校門 | 교문 | school gate; school entrance |
休校 | 휴교 | closed school |
登校 | 등교 | attending school |
母校 | 모교 | one’s alma mater |
高等學校 | 고등학교 | high school |
學校生活 | 학교생활 | school life; student life |
將校 | 장교 | commissioned officer (military) |
Additional notes
This character must not be confused with 敎 (교|가르칠), as in 敎育 (교육|education).
Other resources
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Bibliography
— Daum 사전, [s.v. 校].
— Grant, B.K. (1982). A Guide To Korean Characters: Reading and Writing Hangul and Hanja, [s.v. 782]. Seoul: Hollym.
— Outlier Dictionary of Chinese Characters, [s.v. 校, 木, 交].
— 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. 23]. Singapore: Tuttle Publishing.