There are many alternate words and phrases that can be used to describe a half-hour time period. Some of the most commonly used synonyms include thirty minutes, 30 minutes, half an hour, thirty-minute interval, 30-minute time slot, and 30 minutes duration. Other variations include "a half hour's worth", "a thirty-minute stretch", and "30 minutes of time". Additionally, some people might use slang or regional terms, such as "a half hour (or 30 minutes) of couch time", "a half hour of screen time", or "a half hour of chillin'". Regardless of the phrasing, all of these synonyms refer to the same specific amount of time.