1. A former British unit of length equivalent to 6,080 feet (1,853.184 meters); 800 feet longer than a statute mile
   - naut mi, mile, mi, geographical mile, Admiralty mile 
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
   - mile, mi, naut mi, knot, international nautical mile, air mile

Derived forms: nautical miles

Type of: nautical linear unit

Encyclopedia: Nautical mile

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