1. substances that can be burned to produce heat or energy

1. provides with fuel or energy
2. encourages or intensifies something

Examples

• Fossil fuels like coal and oil are major energy sources.
• The car runs on alternative fuels such as ethanol.
• She fuels her car at the gas station every week.
• The generator fuels the entire building during power outages.
• His criticism only fuels her determination to succeed.
• The scandal fuels public distrust of politicians.
• Wood and charcoal are common fuels for camping stoves.