lock somebody/something ↔ away phrasal verb ( see also ↑ lock )
1 . to put something in a safe place and lock the door, lid etc SYN lock up :
He locked his money away in the safe.
2 . to put someone in prison SYN lock up :
I hope they lock him away for years.
3 . lock yourself away to keep yourself separate from other people by staying in your room, office etc