plate (a flat metallic object) / traffic sign / dental plaque / license plate / circuit board / tectonic plate

(geology) tectonic plate (large piece of the Earth’s crust)

(computer hardware) motherboard (primary circuit board of a computer)

Alternative spelling of placa tectónica

soundboard

circuit board (board with electronic components and circuits)

(computing) video card (piece of hardware that generates output for monitors or projectors)

Alternative form of placar (“placard”)

plural of placard