noun
Refers to a leaflet, advertisement, or supplement inserted into a newspaper or magazine, often folded. Common in publishing and direct mail contexts.
今朝の新聞に折り込み広告が入っていた。
There was an insert advertisement in this morning's newspaper.
折り込みチラシのデザインを担当しています。
I'm in charge of designing the insert flyers.
Katakana spelling used in advertising or commercial contexts.
A leaflet or flyer in general, not necessarily inserted into a publication. 折り込み specifically refers to the insert itself or the act of insertion.
Can also mean an insert, but is broader (e.g., inserting a plug, a bookmark). 折り込み emphasizes the folded nature and is strongly associated with newspaper/magazine inserts.
Compound of 折り (ori, 'folding', continuative form of 折る) + 込み (komi, 'putting in', continuative form of 込む). Literally 'folding and putting in', referring to the practice of folding a sheet and inserting it into a publication.