Cách sử dụng
The word 'category' is used to group things that are similar to each other. For example, books can be placed in categories such as mystery, romance, or nonfiction. Categories can also be used for organizing things like types of food, types of animals, and different types of sports. If you are learning English, you may want to use the word 'category' when talking about things that belong together or when you want to group similar things.