The word "vacay" is a slang term that is often used as a substitute for the more formal term "vacation." There are many different synonyms that can be used instead of "vacay," including "getaway," "holiday," "escape," "journey," and "break." These words all suggest a time of rest and relaxation away from one's typical routine, whether it's a brief weekend trip or a longer holiday spent exploring new destinations. By using these alternative synonyms, speakers and writers can add variety and flair to their language, while still conveying the same concept of taking a break from the daily grind.