WordNet
naut mi
n. a British unit of length equivalent to 1,853.18 meters (6,082 feet) [syn: nautical mile, mile, mi, geographical mile, Admiralty mile]
a unit of length used in navigation; equivalent to the distance spanned by one minute of arc in latitude; 1,852 meters [syn: nautical mile, mile, mi, knot, international nautical mile, air mile]