Placard

n.	1.	A public proclamation; a manifesto or edict issued by authority. All placards or edicts are published in his name. - Howell.
	2.	Permission given by authority; a license; as, to give a placard to do something.
	3.	A written or printed paper, as an advertisement or a declaration, posted, or to be posted, in a public place; a poster.
	4.	(Anc. Armor) An extra plate on the lower part of the breastplate or backplate.
	5.	A kind of stomacher, often adorned with jewels, worn in the fifteenth century and later.
v. t.	1.	To post placards upon or within; as, to placard a wall, to placard the city. [imp. & p. p. Placarded; p. pr. & vb. n. Placarding.]
	2.	To announce by placards; as, to placard a sale.

Noun	1.	placard - a sign posted in a public place as an advertisement; "a poster advertised the coming attractions" Synonyms: poster, posting, notice, card, bill
Verb	1.	placard - post in a public place
	2.	placard - publicize or announce by placards Synonyms: bill

advertise, affiche, ballyhoo, bark, bill, boost, build up, bulletin, circularize, cry up, establish, give a write-up, give publicity, handbill, plug, post, post bills, post up, poster, press-agent, promote, publicize, puff, sell, spiel, write up