a familiar name for a person (often a shortened version of a person's given name); "Joe's mother would not use his nickname and always called him Joseph"; "Henry's nickname was Slim"
a descriptive name for a place or thing; "the nickname for the U.S. Constitution is `Old Ironsides'"
relating to the antipodes or situated at opposite sides of the earth; "antipodean latitudes"; "antipodal regions of the earth"; "antipodal points on a sphere"