This is the 1353rd most frequent Japanese word.
ガソリン
Gasoline.
In this context, 'ガソリン' is used to refer to the liquid fuel used for vehicles.
車のタンクにガソリンを満たしました。
I filled the car's tank with gasoline.
Here, 'ガソリン' is associated with the refueling process, emphasizing the place called 'ガソリンスタンド'.
ガソリンスタンドで燃料を購入しました。
I bought fuel at the gas station.
In this case, 'ガソリン' describes cars that run on gasoline in contrast to alternative fuel vehicles.