When talking about multiplication or repetition, the phrase "four times" is commonly used. However, there are several other ways to express the same concept. "Quadruple" is a commonly used synonym for "four times," especially in the context of multiplication. Another option is to use the phrase "times four," which has the same meaning but with the order of words reversed. "Fourfold" is another synonym that can be used to express the concept of multiplication or increase by a factor of four. Finally, the phrase "four instances" could be used to describe something that has occurred or will occur four times.