Noon/nuːn/ Definition 1 of 3Pro Tip 1/3Specific Time Refers to exactly 12pm, not any time around it. Let's meet exactly at noon. Pro Tip 2/3Daily Event Noon is part of our daily routine, often associated with lunch. I take a walk every day at noon. Pro Tip 3/3Sun Position It’s when the sun is at its highest point in the sky, but not necessarily the hottest time. The sun is directly overhead at noon.