If you lock yourself away you go to a place where you can be alone and not disturbed by anyone or anything; perhaps to do some work or to study.
Example of use:
I need to finish this essay by tomorrow, so I’m going to lock myself away for a few hours.
infinitive – lock
present simple – lock and locks
-ing form – locking
past simple – locked
past participle – locked
Image by Hachette
