This is the 9745th most frequent Polish word.
zazwyczaj
"Zazwyczaj" means "usually" in English.
Here, "zazwyczaj" is used to indicate a habitual action, stating something that occurs regularly.
Zazwyczaj wstaję o siódmej rano.
I usually wake up at seven in the morning.
In this case, "zazwyczaj" describes a general pattern of behavior associated with weekends.
Zazwyczaj w weekendy spędzam czas z rodziną.
I generally spend weekends with my family.
Here, "zazwyczaj" is used to describe a widespread or commonly observed occurrence.