The term 'GET READY FOR A TRIP' can be summarized by the four-letter word 'PACK'. This means that in order to get ready for a trip, one must PACK their belongings. This includes items such as clothing, toiletries, and any other items necessary for the duration of the trip. Packing is an important step in preparing for a trip, as it ensures that all necessary items are brought along and that nothing is forgotten.