[1] : The Collaborative International Dictionary of English v.0.48

mile \mile\ mimacl, n. as. mimacl, fr. l. millia, milia;
   pl. of mille a thousand, i. e., milia passuum a thousand
   paces. cf. mill the tenth of a cent, million.
   a certain measure of distance, being equivalent in england
   and the united states to 320 poles or rods, or 5,280 feet.
   1913 webster

   note: the distance called a mile varies greatly in different
         countries. its length in yards is, in norway, 12,182;
         in brunswick, 11,816; in sweden, 11,660; in hungary,
         9,139; in switzerland, 8,548; in austria, 8,297; in
         prussia, 8,238; in poland, 8,100; in italy, 2,025; in
         england and the united states, 1,760; in spain, 1,552;
         in the netherlands, 1,094.
         1913 webster

   geographical mile or nautical mile, one sixtieth of a
      degree of a great circle of the earth, or 6080.27 feet.

   mile run. same as train mile. see under train.

   roman mile, a thousand paces, equal to 1,614 yards english
      measure.

   statute mile, a mile conforming to statute, that is, in
      england and the united states, a mile of 5,280 feet, as
      distinguished from any other mile.
      1913 webster
see also:
mill million geographical mile nautical mile mile run train mile 
train roman mile statute mile 

[2] : The Collaborative International Dictionary of English v.0.48

nautical \nau"tical\, a. l. nauticus, gr. naytiko`s, fr.
   nay`ths a seaman, sailor, fr. nay^s ship: cf. f. nautique.
   see nave of a church.
   of or pertaining to seamen, to the art of navigation, or to
   ships; as, nautical skill.
   1913 webster

   syn: naval; marine; maritime. see naval.
        1913 webster

   nautical almanac. see under almanac.

   nautical distance, the length in nautical miles of the
      rhumb line joining any two places on the earth's surface.
      

   nautical mile. see under mile.
      1913 webster
see also:
nave naval nautical almanac almanac nautical distance nautical mile 
mile 

[3] : WordNet (r) 2.0

nautical mile
     n 1: a british unit of length equivalent to 1,853.18 meters
          6,082 feet syn: naut mi, mile, mi, geographical
          mile, admiralty mile
     2: a unit of length used in navigation; equivalent to the
        distance spanned by one minute of arc in latitude; 1,852
        meters syn: mile, mi, naut mi, knot, international
        nautical mile, air mile
see also:
naut mi mile mi geographical mile admiralty mile knot 
international nautical mile air mile 

Nautical Mile >> N Words
Nautical Mile, definition of term: Nautical Mile
nautical+mile_pag1.html

Nautical >> N Words
Nautical, definition of term: Nautical
nautical_pag1.html

Mile >> M Words
Mile, definition of term: Mile
mile_pag1.html

Land Mile >> L Words
Land Mile, definition of term: Land Mile
land+mile_pag1.html

Air Mile >> A Words
Air Mile, definition of term: Air Mile
air+mile_pag1.html