lock out

lock out (third-person singular simple present locks out, present participle locking out, simple past and past participle locked out)

1. (transitive) To inadvertently prevent (a person, particularly oneself) from entering a place, by leaving it locked.

   Antonyms: let in, lock in

   Hypernym: keep out

   I've locked myself out of my room again!

2. (computing) To prevent from accessing a data structure.

   The synchronize keyword locks out all other threads trying to access the object.

3. (transitive) (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)

   Coordinate term: tag out

lock out (plural lock outs)

1. Misspelling of lockout.

• lock in