placard

A sheet of paper or cardboard with a written or printed announcement on one side for display in a public place.

A public proclamation; a manifesto or edict issued by authority.

Permission given by authority; a license.

“to give a placard to do something”

An extra plate on the lower part of the breastplate or backplate of armour.

A kind of stomacher, often adorned with jewels, worn in the fifteenth century and later.

The woodwork and frame of the door of a closet etc.

To affix a placard to.

To announce with placards.

“to placard a sale”