Handbill and Stuffer

Handbill noun - An advertisement (usually printed on a page or in a leaflet) intended for wide distribution.

Stuffer and handbill are semantically related. In some cases you can replace term "Stuffer" with "Handbill", this nouns are similar.

Stuffer noun - An advertising circular that is enclosed with other material and (usually) sent by mail.

Handbill and stuffer are semantically related. Sometimes you can use "Handbill" instead a noun "Stuffer".