A feature of some volcanoes, especially the shield volcanoes of Hawaii, in which a linear series of fissures in the volcanic edifice allows lava to erupt from the volcano's flank instead of from its summit.

A district of Baghdad, Iraq: A fortified high-security district of Baghdad; established by the United States occupation force in the wake of the U.S.-Iraq War invasion of 2003; which contains major international hotels, international organizations and forces headquarters, Iraqi national ministries and government offices, and VIP residences.

A specifically hazardous place to be avoided, usually demarcated, such as an area with anti-personnel mines / (figuratively) the genitals

(historical) A former area between Saudi Arabia and Iraq, abolished 1991.

An area with no life. / (ecology) An area of the ocean where oxygen levels are too low to support life, especially as a result of pollution.

Alternative spelling of dropzone / relegation zone

Either of two zones of the Earth that lie between the poles and either the Arctic Circle or the Antarctic Circle

The Panama Canal Zone. / The Suez Canal Zone.

plural of zone punch

(astronomy) The zone around a star where a planet could experience temperatures like those on Earth, allowing for the possible existence of liquid water and of life.