n A unit of measure (length or distance) equal to 5,280 feet (8 furlongs) in the U.S.Customary/imperial|Imperial system of measurements. One mile is equal to 1.609344 km. http://www.onlineconversion.com/length_common.htm
n A Roman unit of measure equal to 1000 (double) steps (mille passus or mille passuum) or 5000 Roman feet (approx. 1480m).
n A track race of one mile in length; sometimes used to refer to the 1500m race.