七
부수: 一
획수: 2획
七 simply means seven.

七 = 七
X = phonetic borrowing
• 七 was the original form of 切 and meant ‘to cut’. The cross in 七 represents one line cutting through another. The character was borrowed for the number seven via a sound loan.
Evolution:
七 = to cut ➔ borrowed use ➔ seven
Mnemonic
Imagine a plumber using a knife 一 to ‘sever through’ an L-shaped PVC pipe 乚.
Vocab
七 | 칠 | seven |
七月 | 칠월 | July |
七角形 | 칠각형 | heptagon |
七旬 | 칠순 | seventy years of age |
七夕 | 칠석 | Chilseok |
七面鳥 | 칠면조 | turkey |
七分바지 | 칠부바지 | three-quarter length pants |
七大洋 | 칠대양 | the Seven Seas |
北斗七星 | 북두칠성 | Big Dipper; Great Bear |
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Bibliography
— Daum 사전, [s.v. 七].
A Guide To Korean Characters: Reading and Writing Hangul and Hanja, [s.v. 4]. Seoul: Hollym.
— Outlier Dictionary of Chinese Characters, [s.v. 七].
— 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. 32]. Singapore: Tuttle Publishing.