Meaning of “petrol” - Learner’s Dictionary

petrol

noun [ U ] uk /ˈpetrəl/ UK US gas
The air was thick with petrol fumes.We're nearly out of petrol.She's just gone to fill the car up with petrol.Petrol prices have risen sharply in the last year.Petrol had leaked all over the road.

A2 a liquid fuel used in cars:

unleaded petrol

(Definition of “petrol” from the Cambridge Learner’s Dictionary © Cambridge University Press)