Meaning of FILLER in English

FILLER

n.1 material or an object used to fill a cavity or increase bulk.

2 an item filling space in a newspaper etc.

3 a person or thing that fills.

Phrases and idioms:

filler cap a cap closing the filling-pipe leading to the petrol tank of a motor vehicle.

Oxford English vocab.      Оксфордский английский словарь.