mile

mile /ˈmajəl/ noun
plural miles
mile
/ˈmajəl/
noun
plural miles
Britannica Dictionary definition of MILE
1 
[count] : a unit of measurement equal to 5,280 feet (about 1,609 meters)
— often used figuratively
— see also nautical mile
2 
miles [plural] : a great distance
— often used figuratively
— see also miles
3 
[singular] : a race that is a mile long

go the extra mile

: to do more than you are required to do