A breakup is the termination of a relationship, usually romantic. It can be caused by a variety of factors, such as a lack of communication, a lack of trust, or a lack of commitment. The term 'breakup' can refer to the act of dissolving a relationship, which is a 10-letter word, or it can refer to the result of the dissolution, which can include a SPLIT (5 letters), SCHISM (6 letters), RIFT (4 letters), and DISBAND (7 letters).