placarder
/pləˈkɑrdər/ or /pləˈkɑrˌdɛr/Definitions
1. verb
to plaster or cover with plaster or to decorate with a placard, especially to decorate the outside of a building.
“The artist placarded the old church with vibrant colors and patterns.”
2. noun
a person who plasters or covers with plaster, or a person who decorates with a placard, especially a building.
“The placarders worked tirelessly to finish the project on time.”