1.
board; game board
A flat surface used for playing board games such as go, shogi, or chess.
碁盤の上に石を並べる。
I place stones on the go board.
将棋盤を挟んで向かい合う。
We sit facing each other across the shogi board.
盤面の状況をよく見て次の手を考える。
I examine the state of the board carefully and think about my next move.
2.
tray; platter; disc; plate
A flat, broad object. Used in compounds to refer to various flat objects including trays, discs, and platforms.
レコード盤を集めている。
I collect vinyl records.
円盤を投げる。
To throw a discus.
岩盤の上に建物を建てる。
To build a structure on bedrock.
盤 refers to a flat surface or board. As a standalone word, it most commonly means a game board. It is highly productive as a suffix in compounds.
GAME BOARD COMPOUNDS:
- 碁盤: go board
- 将棋盤: shogi board
- チェス盤: chess board
- 盤面: board surface; state of play
OTHER COMPOUNDS:
- 円盤: disc, discus
- 岩盤: bedrock
- 基盤: foundation, basis
- レコード盤: vinyl record
- 配電盤: switchboard
NOTE:
The character 盤 conveys the idea of something flat and broad, which extends metaphorically to meanings like foundation (基盤) and situation (局面 is related conceptually to 盤面).