mi
noun
1.
a former British unit of length equivalent to 6,080 feet (1,853.184 meters); 800 feet longer than a statute 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
3.
a unit of length equal to 1,760 yards or 5,280 feet; exactly 1609.344 meters
4.
the syllable naming the third (mediant) note of any major scale in solmization