This meaning refers to ending an activity, habit, effort, or repeated behavior.
He decided to quit smoking.
Do not quit when the work becomes difficult.
This meaning refers to voluntarily ending employment or leaving an official position.
She quit her job last month.
He threatened to quit if conditions did not improve.
This formal or literary meaning refers to leaving a place, property, or location.
The tenants were ordered to quit the property.
They quit the city before sunrise.