1. the act of posting or displaying placards or signs

1. present participle of placard; posting or displaying placards or signs

Examples

• The workers were placarding the construction site with safety warnings.
• Placarding of hazardous materials is required by federal law.
• The protesters spent the morning placarding the building with their demands.
• The city requires placarding of all condemned buildings.
• They are placarding the event with promotional signs.
• The placarding of the store windows attracted many customers.