The term 'JET (OFF)' can be solved by two crossword solutions: 'VACATE' (6 letters) and 'DASH' (4 letters). 'VACATE' means to leave a place, usually with the intention of never returning. It is often used in legal contexts, such as when a tenant vacates a rental property. 'DASH' is an informal verb meaning to move quickly or hastily. It is often used to describe someone running away from a situation or leaving in a hurry. Together, these two words suggest that someone is quickly leaving a place, likely with no intention of returning.