Fuel is a type of energy source used to power many machines and vehicles. The crossword solutions for the term fuel include INFLAME (7 letters), PROPELLANT (10 letters), BUTANE (6 letters), COMBUSTIBLE (11 letters), SUPPLY (6 letters), FIRE (4 letters), JUICE (5 letters), FEED (4 letters), CHARCOAL (8 letters), COKE (4 letters), PEAT (4 letters), FIREWOOD (8 letters), KEROSENE (8 letters), DIESEL (6 letters), STOKE (5 letters), PETROLEUM (9 letters), PETROL (6 letters), OIL (3 letters), GAS (3 letters), COAL (4 letters), ETHANE (6 letters), STOKEUP (7 letters), and GASOLINE (8 letters). These solutions all refer to different types of fuel, ranging from COMBUSTIBLE liquids such as GASOLINE and KEROSENE to solid fuels like COAL and CHARCOAL.