This is the 11514th most frequent Russian word.
доску
The Russian word "доску" means "board" (accusative case).
In this sentence, 'доску' refers to a blackboard or whiteboard used in a classroom setting.
Учитель пишет на доску.
The teacher writes on the board.
Here, 'доску' refers to a wooden plank or slab typically used in construction or carpentry.
Мы положили доску на пол, чтобы отремонтировать её.
We placed the board on the floor to repair it.
In this context, 'доску' indicates a chalkboard used for displaying artwork or messages.