This is the 490th most frequent Polish word.
zajmuje
The Polish word "zajmuje" means "occupies," "takes up," or "deals with," depending on the context.
Here, 'zajmuje' refers to occupying or taking up space.
Ta maszyna zajmuje dużo miejsca.
This machine occupies a lot of space.
In this context, 'zajmuje' is used to mean being engaged in or taking care of an activity, in this case, teaching languages.
On zajmuje się nauczaniem języków.
He is involved in teaching languages.
Here, 'zajmuje' conveys the meaning of taking or requiring a certain amount of time.