— placarder , n.
/plak"ahrd, -euhrd/ , n.
1. a paperboard sign or notice, as one posted in a public place or carried by a demonstrator or picketer.
2. Armor. placate 2 .
v.t.
3. to display placards on or in: The square was placarded by peace marchers.
4. to publicize, announce, or advertise by means of placards.
5. to post as a placard.
[ 1475-85; ]