tanker

Short definition from Wiktionary

Noun

1. 1
   A tankship, a vessel used to transport large quantities of fluid.
2. 2
   A motor truck with a tank to hold bulk liquid (with or without internal baffles).
3. 3
   A fuel tanker, petrol tanker, road tanker.
4. 4
   An aircraft carrying a large supply of jet fuel or avgas for aerial refueling of other aircraft, plus equipment allowing the in-air transfer of fuel.
5. 5
   An aircraft built or modified to carry water and/or fire retardant for dropping on wildfires.
6. 6
   A tank car.
7. 7
   Member of a tank crew, or of an armoured unit.
8. 8
   A longboard.

Verb

1. 1
   To transport (oil, etc.) in a tanker.
2. 2
   To carry more fuel than necessary for a flight, in order to avoid having to refuel at a destination where fuel is more expensive or in short supply.