Look up this word
board

In a sentence
Učiteľ píše na tabuľu.
The teacher writes on the board.
Učiteľka píše na tabuľu.
The teacher writes on the board.
Učiteľ niečo píše na tabuľu.
The teacher is writing something on the board.
Učiteľka niečo píše na tabuľu.
The teacher is writing something on the board.
Examples from Tatoeba (CC BY 2.0 FR).
Source
Slovak National Corpus (SNK) ↗English gloss from the frequency publish path. Example sentences from Tatoeba (CC BY 2.0 FR).
Full attribution on References.