This is the 4427th most frequent Swedish word.
täcka
"Täcka" means "to cover" in English.
In this sentence, 'täcka' is used to mean 'to cover something', specifically to protect the furniture.
Jag måste täcka över möblerna innan jag målar om rummet.
I need to cover the furniture before repainting the room.
Here, 'täckte' (past tense of 'täcka') expresses the idea of 'to spread over' or 'to cover a surface completely'.
Ett tjockt lager snö täckte marken efter nattens snöfall.
A thick layer of snow covered the ground after the night's snowfall.
In this context, 'täcker' means 'to address or encompass', referring to the idea of sufficiently dealing with questions or topics.