to lock vs to fall asleep in Korean
잠그다vs잠들다

잠그다to lock
잠그다 means to make something closed with a lock so other people cannot open it. You can use it for doors, windows, lockers, and bicycles. In daily life, people often use this word when leaving home, going to school, or keeping things safe.
When to use to lock
잠들다to fall asleep
'To fall asleep' (잠들다) means to begin sleeping. Use it when someone changes from being awake to sleeping. You can use it in everyday situations for people or animals, such as at home, on the bus, or in class.
When to use to fall asleepHow they differ
to lock (잠그다) and to fall asleep (잠들다) are nearby Korean vocabulary items learners often meet together. Use “to lock” when 잠그다 means to make something closed with a lock so other people cannot open it. You can use it for doors, windows, lockers, and bicycles.… Use “to fall asleep” when 'To fall asleep' (잠들다) means to begin sleeping. Use it when someone changes from being awake to sleeping. You can use it in everyday situ…