noun
advertising leaflet; flyer; ad poster
Printed promotional material distributed in public, often handed out on streets or inserted in newspapers.
駅前で新店の広告ビラを配っていた。
They were handing out advertising flyers for the new shop in front of the station.
新聞に広告ビラが折り込まれている。
An advertising leaflet is inserted in the newspaper.
チラシ is a more general term for any leaflet or flyer, not necessarily advertising. 広告ビラ specifically emphasizes the promotional purpose.
パンフレット usually refers to a multi-page booklet, while 広告ビラ is typically a single sheet.
Compound of 広告 (advertisement) and ビラ (leaflet, from English 'bill' or Portuguese 'bilha').