circular, bulletin, notice; see poster.
publicize, declare, announce; see advertise 1.
"placard." YourDictionary, n.d. Web. 12 October 2018. <http://thesaurus.yourdictionary.com/placard>.
placard. (n.d.). Retrieved October 12th, 2018, from http://thesaurus.yourdictionary.com/placard
A usually public posting that conveys a message:
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