What does refuel mean?
Refuel means to put fuel or another source of energy back into a vehicle, machine, or system. It is especially associated with cars, aircraft, boats, and other vehicles that must pause during a journey to obtain more fuel, although the word can also be used figuratively for renewing the resources needed to continue a project or activity. In everyday British and American English, the standard spellings are refueled and refueling in American usage and refuelled and refuelling in British usage. Refuel is more specific than refill, since it identifies the energy source being replenished. Its figurative uses convey the idea of restoring momentum, capacity, or encouragement, making it a useful word for describing both practical maintenance and the renewal of collective effort.
To supply a vehicle, machine, or system with fuel or energy again after it has been partly or completely consumed.
"The helicopter returned to base to refuel."
The word can be transitive, as in refuel the aircraft, or intransitive, as in stop to refuel. It is also used figuratively when resources or energy for an activity are renewed.
The act of supplying a vehicle or machine with fuel again; a refueling stop or provision of fuel.
"The flight included a refueling stop in Alaska."
The noun is less common than the verb and is often used in transport or military contexts.
Refueling turns a journey into a chain of smaller journeys: before you can reach the destination, you must first find enough energy to reach the next stop.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does refuel come from?
Refuel is formed in the modern English period by combining the prefix re-, meaning again, with fuel. Fuel itself is an older English word inherited from Old English fōl, meaning combustible material; the modern sense of a substance used to generate energy or power developed over time. The prefix re- makes the meaning of the compound transparent: to fuel again. Refuel has been used both literally for vehicles and figuratively for restoring resources or energy.
Related word forms
How refuel is actually used
Refuel is common in transport, aviation, maritime, and military contexts. The spelling varies between American and British English: refueled and refueling are typical in American English, while refuelled and refuelling are typical in British English. The phrase refuel the debate or similar figurative uses usually means to provide the energy or material needed to continue an activity, not literally to add fuel.
Easily confused with refuel
Refuel specifically means to supply fuel or another form of energy, whereas refill means to replace any consumable contents.