from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A sign or notice for display in a public place.
  • n. A small card or plaque, such as a nameplate on a door.
  • transitive v. To announce or advertise by means of placards.
  • transitive v. To post placards on or in.
  • transitive v. To display as a placard.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A sheet of paper or cardboard with a written or printed announcement on one side for display in a public place.
  • v. To affix a placard to.
  • v. To announce with placards.

from the GNU version of the Collaborative International Dictionary of English

  • n. A public proclamation; a manifesto or edict issued by authority.
  • n. Permission given by authority; a license.
  • n. A written or printed paper, as an advertisement or a declaration, posted, or to be posted, in a public place; a poster.
  • n. An extra plate on the lower part of the breastplate or backplate.
  • n. A kind of stomacher, often adorned with jewels, worn in the fifteenth century and later.
  • transitive v. To post placards upon or within.
  • transitive v. To announce by placards.

from The Century Dictionary and Cyclopedia

  • To post placards upon: as, to placard the walls of a town.
  • To make known or make public by means of placards: as, to placard the failure of a bank.
  • n. A written or printed paper displaying some proclamation or announcement, and intended to be posted in a public place to attract public attention; a posting-bill; a poster.
  • n. An edict, manifesto, proclamation, or command issued by authority.
  • n. A public permit, or one given by authority; a license.
  • n. In medieval armor, same as placcate.
  • n. A plate or tag on which to place a mark of ownership.
  • n. Pargeting; parget-work.
  • n. The woodwork or cabinet-work composing the door of a closet, etc., with its framework.
  • n. A closet formed or built in a wall, so that only the door is visible from the exterior.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • v. post in a public place
  • n. a sign posted in a public place as an advertisement
  • v. publicize or announce by placards


Middle English, official document, from Old French, from plaquier, to plaster, piece together, from Middle Dutch placken, to patch.
(American Heritage® Dictionary of the English Language, Fourth Edition)
Middle English placquert, 'official document,' from Middle French placquier, 'to plate'. Cognate of 'plaque' (1560) (Wiktionary)


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