- 1 [transitive] fuel something to supply something with material that can be burned to produce heat or power Uranium is used to fuel nuclear plants. coal-fueled power stations
- 2 [transitive, intransitive] fuel (something) (up) to put gas into a vehicle The helicopter was already fueled (up) and ready to go.
- 3[transitive] fuel something to increase something; to make something stronger synonym stoke to fuel speculation/rumors/fears Higher salaries helped to fuel inflation.
NAmE//ˈfyuəl//, NAmE//fyul//Verb Forms present simple I / you / we / they fuel
he / she / it fuels
past simple fueled ()fuelled
-ing form fueling ()fuelling