lock out
verb1
To inadvertently prevent (a person, particularly oneself) from entering a place, by leaving it locked.
- I've locked myself out of my room again!
2
Computing, Engineering, Mathematics, Natural sciences, Physical sciences, Sciences To prevent from accessing a data structure.
- The synchronize keyword locks out all other threads trying to access the object.
3
(industrial) To prevent (a person, including oneself) from powering up or turning on a machine when doing so would be dangerous (accomplished with objects such as padlocks or zip ties placed through the switch handle, for example)
4
(colloquial, sometimes humorous) To be unable to concentrate.
- Bro, I am totally locked out on this assignment.
- Derived terms
- lock-out, lockout