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宿 (Lodging, sleep)
- 기숙사 <寄宿舍> - Dorm 
- 숙식 <宿食> - Accommodations and meals, board and lodging
- 숙박(하다) <宿泊> - Lodge
- 숙박료 <宿泊料> - Lodging charge
 
- 숙소 <宿所> - Lodging (place)
- 노숙자 <露宿者> - The homeless
- 숙제 <宿題> - Homework
- 숙취 <宿醉> - Hangover
熟 (Be done, deep)
- 백숙 <白熟> fish or meat boiled in plain water 
- 숙면(하다) <熟眠> - Deep sleep, Sleep well 
- 심사숙고하다 <深思熟考> - Consider (a matter) carefully,  give a deep thought