Alternative spelling of dropzone / relegation zone

plural of temperate zone

plural of strike zone

The Panama Canal Zone. / The Suez Canal Zone.

plural of aeration zone

(hydrology) A portion of the lithosphere in which the functional interstices of permeable rock or earth are not filled by water under hydrostatic pressure.

plural of death zone

plural of loading zone

(slang) The situation in which one is viewed by a potential partner as a platonic friend, which complicates the initiation of a romantic relationship.

(slang, transitive) To classify as a friend, without any possibility of a romantic relationship.