Phrasal Verb 'Lock up'

We have 3 phrasal verb definitions related to 'Lock up'.

Lock up

Close all doors, windows, etc.

Example: She LOCKED UP after everyone had left and went home.

Lock up

Lock something in a safe place

Example: I LOCKED my money UP in the safe.

Lock up

Put in prison or a mental hospital

Example: They LOCKED him UP for burglary.