I. ˈplaˌkärd, -kȧd, -_kə(r)d noun
( -s )
Etymology: Middle English placquart, from Middle French, from plaquier to plate, plaster — more at plaque
1. archaic : a piece of armor plate (as a breastplate or backplate)
pulled down his visor and clasped it to the placard — Horace Smith
specifically : placcate 1
2.
a. obsolete : an authorization or permit bearing an official seal
b. archaic : an official edict or proclamation
3.
a. : a notice or announcement printed on one side of a sheet for posting in a public place : poster , sign
every travel agent … has some sort of placard in his window advertising one of the sightseeing tourist itineraries — Richard Joseph
b. : a small card or metal plaque
a placard on the door says “no admittance”
leather belts with plain brass placards or initialed — New Yorker
a placard on the fuselage lists performance data
II. transitive verb
( -ed/-ing/-s )
1.
a. : to cover with or as if with posters
placard a fence with advertisements
ancestors whose portraits snootily placard the … walls — Wyndham Lewis
b. : to post in a public place
pictures of the occasion were … placarded throughout eastern Europe — Time
2. : to label or announce by or as if by posting : call attention to
has never been my habit to placard my movements like a court circular — John Buchan
crimes placarded by the evening papers — L.P.Smith