Timebox
In plain terms
A fixed maximum time allotted to an activity.
Going deeper
Timeboxing caps how long an activity may take, forcing focus and preventing endless work. It bounds effort by time, not scope.
Under the hood
Used for meetings, spikes, and sprints; protects against perfectionism and scope creep.
Examples
Sprints, meetings, spikes, focused work sessions, Agile events.
Think of it like...
Like setting a kitchen timer that ends the task whether or not it's perfect.