mailpiece

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noun

(countable) A piece of mail, that is, an item of (physical) mail; especially, an item of flat envelope form factor as contrasted with an item of package form factor.

“You have 0 mailpiece(s) and 1 inbound package(s) arriving soon. [U.S. Postal Service Informed Delivery email of the 2020s]”

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Meanings

nounmailpiece (plural mailpieces)

plural mailpieces

  1. CanadaUS(countable) A piece of mail, that is, an item of (physical) mail; especially, an item of flat envelope form factor as contrasted with an item of package form factor.

    You have 0 mailpiece(s) and 1 inbound package(s) arriving soon. [U.S. Postal Service Informed Delivery email of the 2020s]

    2 more examples

    Each mailjob is composed of pages that go into a single envelope. These are called mailpieces.

    1995 April, Anthony F. Stuart, Technical Association of the Graphic Arts, Proceedings, page 442

    The name and return address of the authorized nonprofit organization must be either on the outside of the mailpiece or in a prominent location

    2002, Bruce R. Hopkins, The Law of Fundraising, page 316

Origin

From mail + piece; part of the business jargon of postal services and mail marketers for more than a century, but not common among the general public until the 21st century.

Full word history & related roots →
Cite this entry
APA

mailpiece. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/mailpiece

MLA

“mailpiece.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/mailpiece. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “mailpiece,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/mailpiece.

Source: mailpiece on Wiktionary, CC BY-SA 4.0.