Noon hour is a common phrase used to refer to midday or midday break, but there are many other ways to express this same idea. Other synonyms for noon hour include noon time, lunch hour, lunchtime, midday, midday break, midday rest, noontide, and meridian. These terms all pertain to the same general timeframe: the middle of the day, usually around 12:00 PM. Whether you're trying to schedule an appointment for a midday meeting or just looking to describe a specific time of day, these synonyms for noon hour can come in handy.