The term 'come up again' can be expressed in two ways: RECUR (5 letters) and RERISE (6 letters). This phrase is used to describe a situation or event that happens repeatedly or returns after a period of time. It is often used to refer to something that has been experienced before, either in the same form or with slight variations. For example, a recurring theme in a book or movie might be said to 'come up again'. Similarly, a person might say that a particular problem or issue 'comes up again' if it keeps resurfacing.