noun, measure word · a group of students or people organized for a task, grade, or study

我们班有三十个学生。

measure word, punctuation, numeral · classifier for groups of people and scheduled transport vehicles such as buses or planes

下一班公共汽车什么时候到？

directional, noun · a scheduled period of work time

我明天要上早班。

proper name · surname Ban

班超是一位著名的历史人物。