Is Lockbox Two Words?

lock•box (lok′boks′), n. a strongbox. a rented post-office box equipped with a lock.

Is it lockbox or lock box?

A lockbox or lock box refers to a box, container or otherwise enclosed space with a built-in lock. Examples include: ... Safe deposit box, a secure container for storage of valuables, usually in a bank. Bank vault, a secure space where money, valuables, records, and documents are stored.

What does lockbox mean?

: a box (such as a post-office box) that locks.