lock verb

1 close with a lock

ADV. carefully He carefully locked the door behind him.

VERB + LOCK forget to

PHRASES be firmly/securely locked, keep sth locked Keep your garage securely locked.

2 put sb/sth inside sth that is locked

ADV. away, in, up I was terrified they would lock me up again.

PREP. in I locked myself in the bathroom.

PHRASES be safely/securely locked All the valuables were safely locked away.