mile‧age /ˈmaɪlɪdʒ/ noun

1. [countable usually singular, uncountable] the number of miles a vehicle has travelled since it was made:
Always check the mileage before you buy a secondhand car.

2. [countable usually singular, uncountable] the number of miles someone travels in a vehicle in a particular period of time:
Look for a car hire agreement that offers unlimited mileage.

3. [countable usually singular, uncountable] the number of miles a vehicle can travel using a particular amount of fuel:
The car’s average mileage is 22.73 miles per gallon.

4. [uncountable] the amount of use or advantage you get from something:
The newspapers wanted to get as much mileage from the story as they could.

5. [countable usually singular, uncountable] (also mileage allowance) an amount of money that is paid to someone for each mile that they travel when they use their own car for work:
Community nurses are paid a mileage allowance.

6. [uncountable] the number of miles covered by a country’s roads or railways:
plans to treble the country’s railway mileage

[TahlilGaran] Dictionary of Contemporary English ▲

mileage
noun
ADJ. annual, weekly | high, low Car for sale: one careful owner, low mileage.
unlimited Your car hire costs include unlimited mileage.
VERB + MILEAGE cover, do There was no record of the mileage the car had done.
MILEAGE + NOUN allowance The company gives a generous mileage allowance.

[TahlilGaran] Collocations Dictionary ▲