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. ] 1. 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 ] 2. Permission given by authority; a license; as, to give a placard to do something. [ Obs. ] ller. [ 1913 Webster ] 3. A written or printed paper, as an advertisement or a declaration, posted, or to be posted, in a public place; a poster. [ 1913 Webster ] 4. (Anc. Armor) An extra plate on the lower part of the breastplate or backplate. Planché. [ 1913 Webster ] 5. [ Cf. Placket. ] A kind of stomacher, often adorned with jewels, worn in the fifteenth century and later. [ 1913 Webster ] | 
