To hire (somebody for work or a job).
To use (somebody for a job, or something for a task).
To make busy.
The state of being an employee; employment.
An event in which an employer bars employees from working as a tactic in negotiating terms of employment, particularly in response to a strike or threat to strike.
To prevent from accessing a data structure.
To inadvertently prevent (a person, particularly oneself) from entering a place, by leaving it locked.