This is the 7561st most frequent Russian word.
доска
Board.
This usage of 'доска' refers to a classroom blackboard or whiteboard where information is displayed.
Учитель написал задачи на доске.
The teacher wrote the problems on the board.
Here, 'доска' denotes a chess board, which serves as the field for the game.
Мы поставили новую доску для игры в шахматы.
We set up a new board for playing chess.
In this context, 'доска' means a wooden plank or board as a material item.