The term SPLITS UP can be solved by two crossword solutions: PARTS (5 letters) and DISSEVERS (9 letters). SPLITS UP is a verb phrase that means to divide into two or more PARTS. It is often used to describe the separation of a couple, a business partnership, or a group of people. The word PARTS is a noun that refers to the individual components of something that has been divided. The word DISSEVERS is a verb that means to separate or divide into PARTS.