noun
advertising insert; inserted flyer
Refers to a leaflet or advertisement inserted into a newspaper or magazine, often delivered with the publication.
今朝の新聞にスーパーの折り込み広告が入っていた。
This morning's newspaper had a supermarket advertising insert.
Standard kanji spelling.
Variant with 折込み instead of 折り込み; less common but still used.
チラシ is a general term for a flyer or leaflet, often handed out or posted, while 折り込み広告 specifically refers to an insert placed inside a newspaper or magazine.
Compound of 折り込み (おりこみ, 'folding in' or 'insertion') and 広告 (こうこく, 'advertisement').