What is Placard?
[[Image:Skull and Crossbones.svg|thumb|right|The skull and crossbones sign is a well-known symbol for [[poison]]]] A '''placard''' is a [[sign]] made to inform people about something. Often, they are used to warn about [[danger]]. Very often, [[hazard symbol]]s (special [[pictogram]]s) are used. Sometimes, placard is also used to mean a [[leaflet]] that shows how a certain [[machine]] should be operated. {{stub}} [[Category:Human communication]]