fuelled

Fuelled is the past tense and past participle of the verb to fuel in British English. Literally, it means supplied with fuel, such as an engine or power plant that is fuelled by petrol, diesel, natural gas, or another energy source. It is also used figuratively to indicate that energy or impetus has been provided to a person, process, or situation.

Spelling and forms vary by region. In American English, the standard form is fueled. The present participle is fueling in American usage and fuelling in British usage. The word appears across technical contexts—engine design, energy policy, transport—as well as in everyday language.

Usage examples illustrate literal and metaphorical senses. A car is fuelled by petrol. A generator is fuelled by natural gas. The project was fuelled by private investment. The debate was fuelled by miscommunication. In each case, the preposition by or with is common, with by indicating the source of energy or motivation and with highlighting materials used.

Etymology and scope: fuelled derives from fuel, the substance used to power or heat something. While primarily a verb form, it also informs many figurative constructions in journalism, policy discussion, and everyday speech, where it conveys the idea of supplying or intensifying energy, activity, or emotion.