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medal; shield; badge
card on which dharani (etc.) are written
notice board (in a Zen temple)
tile (mahjong, dominos, etc.)
大会で金の牌をもらった。
I received a gold medal at the competition.
麻雀の牌を並べましょう。
Let's arrange the mahjong tiles.
この牌はとても古いものだ。
This badge is very old.