What does "usually" mean?

Most of the time; less than always, but more than occasionally.

Usually

Common synonyms include: commonly, ordinarily, accustomedly, again and again, all in all, all things considered.

/ˈjuːʒʊəli/ adv

adv ·Moderate ·High school level

Adverb

1
Most of the time; less than always, but more than occasionally.
"Except for one or two days a year, he usually walks to work."
2
Under normal conditions.

Adverb

"I usually take a shower in the evening."

From Middle English usualli, equivalent to usual + -ly. Displaced native Old English ġewunelīċe.