lock up

(noun) jail in a local police station. Synonyms: lockup.

(noun) the act of locking something up to protect it. Synonyms: locking, lockup.

(verb) secure by locking. Synonyms: lock up. Example: "Lock up the house before you go on vacation."

(verb) place in a place where something cannot be removed or someone cannot escape. Synonyms: lock in, lock away, lock, put away, shut up, shut away, lock up. Examples: "The parents locked her daughter up for the weekend." "She locked her jewels in the safe."