noun · a book or notebook used for writing, recording, or exercise

他在本子上记下了老师讲的重点。

noun · Japanese-style self-published comic or fan-made manga, often erotic

他在漫展上买了几本喜欢的同人本子。

noun · a specific version or edition of a published work

这个《红楼梦》的本子非常珍贵。