GNU Collaborative International Dictionary of English

Found 2 definitions

1.       
   Placard , n. [F., fr. plaquer to lay or clap on, plaque plate, tablet; probably from Dutch, cf. D. plakken to paste, post up, plak a flat piece of wood.]
   A public proclamation; a manifesto or edict issued by authority. [Obs.]
   1913 Webster
   All placards or edicts are published in his name.
   Howell.
   
   1913 Webster
   Permission given by authority; a license; as, to give a placard to do something. [Obs.]
   ller.
   
   1913 Webster
   A written or printed paper, as an advertisement or a declaration, posted, or to be posted, in a public place; a poster.
   1913 Webster
   (Anc. Armor) An extra plate on the lower part of the breastplate or backplate.
   Planché.
   
   1913 Webster
   [Cf. Placket.] A kind of stomacher, often adorned with jewels, worn in the fifteenth century and later.
   1913 Webster
         
       

2.       
   Placard, v. t. [imp. & p. p. Placarded; p. pr. & vb. n. Placarding.]
   To post placards upon or within; as, to placard a wall, to placard the city.
   1913 Webster
   To announce by placards; as, to placard a sale.
   1913 Webster