The term 'go off track' can be described by three crossword solutions: derail (6 letters), DIGRESS (7 letters), and ERR (3 letters). Derail means to cause a train to leave its track, figuratively meaning to cause something to go off course. DIGRESS means to stray from the main topic of conversation or thought, and ERR means to make a mistake or do something wrong. All three words describe the idea of going off track in different ways.