There are several synonyms for the phrase "idle away time." One of the most common is "waste time," which implies a lack of productivity or purpose. Other synonyms include "kill time," which suggests an intention to fill empty hours without any particular goal, and "fritter away time," which emphasizes the idea of scattered or unproductive activity. We might also use "lounge around," "dawdle," or "loaf," which indicate a relaxed and leisurely approach to time. Regardless of the exact words we use, communicating the idea of idle time means acknowledging the value of each moment and seeking ways to use it intentionally.