2,000 English idioms, phrases and expressions that we use daily, with their meanings and origins explained...
1 An abbreviation might be formed using the first and last letter of the complete word.  2 Yard, for example, is abbreviated yd., and quart is abbreviated qt.. 3  Some measurement abbreviations are formed by using the first letter or two (or sometimes three) of the word. 4  Some examples of this are mi. ( 5 mile), in.
1 mi = 1609.344 m Miles Definition One of the oldest known units of distance and length used in the US and the Imperial systems, a mile is equal to 1,760 yards or 5,280 feet.