miles mi are a imperial unit used for measuring length
miler is not linear_unit. mil is unit_of_angular_measurement. mil is linear_unit. mile is linear_unit. half_mile is linear_unit. british_imperial_system is system_of_weights_and_measures. miles_per_gallon is unit_of_measurement. british_imperial_system is not system_of_weights_and_measures. mile is not linear_unit. miler is linear_unit.