The term 'LONG TRIPS' can be summarized by the crossword solution 'TREKS', which is a five-letter word. A trek is a long and difficult journey, usually involving walking or hiking for an extended period of time. It is often associated with exploration and adventure, as well as physical and mental challenges. Trekking is a popular activity among outdoor enthusiasts, and can take place in a variety of settings, from mountains to deserts.