学, (pinyin: xué), means to learn / study.
You can learn pronunciation from this site: https://en.bab.la/dictionary/english-chinese/studying
It is one of those frequently use school vocabulary in Mandarin Chinese.
学 is often used together with 习 to form a phrase 学习, which also means to learn / study.
It may or may not be followed by an object. When it is not, it emphasizes the act of studying itself.