If people or things are divided into categories, they are divided into groups in such a way that the members of each group are similar to each other in some way.
近义词
class , classification
双语例句
例： This book clearly falls into the category of fictionalized autobiography.
这本书显然类属于自传体小说。
例： The tables were organized into six different categories.
桌子被划分为六个不同的种类。