A former British unit of length equivalent to 6,080 feet (1,853.184 meters); 800 feet longer than a statute mile. Synonyms:Admiralty mile, geographical mile, mi, mile, naut mi.
2.
A unit of length used in navigation; exactly 1,852 meters; historically based on the distance spanned by one minute of arc in latitude. Synonyms:air mile, international nautical mile, knot, mi, mile, naut mi.
