Cách sử dụng
The word "fifteenth" is used to describe something that is in the position of number fifteen in a sequence of things. For example, if there are fifteen days in a month, the day in the middle of the month would be called the "fifteenth day." Similarly, if a person is celebrating their fifteenth birthday, they are said to be turning "fifteen" or "fifteenth years old." It is important to note that the word "fifteenth" always refers to the number 15, so it should only be used in situations where this specific number is relevant.