This is the 2107th most frequent Japanese word.
学
"学" means "study" or "learning."
In this sentence, '学' is part of the word '学生' (student), which refers to an individual who studies.
学生は毎日勉強をします。
Students study every day.
Here, '学' appears in the word '学校' (school), indicating a place associated with learning or study.
学校ではいろいろなことを学びます。
At school, we learn various things.
In this usage, '学' is part of '学問' (academic studies), highlighting the idea of systematically gaining knowledge.