mail slot

noun

A slot in a wall or door through which mail is delivered.

Similar
letterbox
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Meanings

nounmail slot (plural mail slots)

plural mail slots

  1. A slot in a wall or door through which mail is delivered.

    Stuffing ACT UP leaflets into the office door's mailslot.

    1989 April 15, Michael Ambrosino, “Acting Up In The Northwest”, in Gay Community News, page 16

    Synonyms: letterbox

  2. computingA designated storage location for interprocess messages.

Synonyms & antonyms

nounA slot in a wall or door through which mail is delivered.

Similar
letterbox
Also see
letterbox

Origin

From mail + slot.

Full word history & related roots →

Translations

Danish brevsprække
  • brevsprækkeslot for mail delivery
Dutch brievengleuf
  • brievengleufslot for mail delivery
Finnish postiluukku, kirjeluukku
  • postiluukkuslot for mail delivery
  • kirjeluukkuslot for mail delivery
German Briefschlitz, Briefkasten
  • Briefschlitzslot for mail delivery
  • Briefkastenslot for mail delivery
Polish skrzynka pocztowa
  • skrzynka pocztowaslot for mail delivery
Scottish Gaelic toll-litrichean
  • toll-litricheanslot for mail delivery
Spanish ranura postal, buzón tipo ranura
  • ranura postalslot for mail delivery
  • buzón tipo ranuraslot for mail delivery
Swedish brevinkast
  • brevinkastslot for mail delivery
Cite this entry
APA

mail slot. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/mail%20slot

MLA

“mail slot.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/mail%20slot. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “mail slot,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/mail%20slot.

Source: mail slot on Wiktionary, CC BY-SA 4.0.