placard

Từ điển Oxford Advanced Learner 8th

plac·ard [placard placards placarded placarding] BrE [ˈplækɑːd] NAmE [ˈplækɑːrd] noun
a large written or printed notice that is put in a public place or carried on a stick in a march
•They were carrying placards and banners demanding that he resign.

Word Origin:
late 15th cent. (denoting a warrant or licence): from Old French placquart, from plaquier ‘to plaster, lay flat’, from Middle Dutch placken.

• Từ đồng nghĩa / Synonyms:
  poster, posting, notice, bill, card