Resembling a warren; mazelike, labyrinthine.

A town in Northern Cape, South Africa; named for British army officer Charles Warren. / A town, the county seat of Fauquier County, Virginia; named for Revolutionary War hero Joseph Warren.

A city in DuPage County, Illinois, United States. / A locality and road in Warren Township, Somerset County, New Jersey, United States.

A small port town in County Down, Northern Ireland.

A village in Macon County, Illinois, United States. / A city, the county seat of Johnson County, Missouri, United States.