diesel · noun C or U /ˈdiː.zəl/Full view
C1 fuel used in the engines of some vehicles, especially buses and trucks, or a vehicle that uses this fuel
Dictionary examples:

My new car uses diesel.

My next car will be a diesel.

Learner example:

I think that our government should spend more money to find other sources of fuel, which could replace the diesel and gas. (International English Language Testing System; C1; Pashto)

Cambridge logo