The time of day when the sun is in its zenith; twelve o'clock in the day, midday.
"The teacher explained that the Arabic letter ن is pronounced like 'noo' and represents a noon sound."
The letter ن in the Arabic script.
In plain English: Noon is exactly twelve o'clock when it's usually high noon outside and lunchtime for most people.
"We usually have lunch at noon every day."
Usage: Noon refers specifically to 12 p.m. and should not be confused with midnight, which occurs at 12 a.m. Use this term when indicating the middle of the day rather than any other time on the clock.
To relax or sleep around midday
"After lunch, he decided to take a siesta at noon."
In plain English: To noon means to reach the middle of the day when the sun is highest in the sky.
"The clock struck noon and everyone stopped working for their lunch break."
A surname.
"The famous astronomer Noon published his groundbreaking research on stellar mechanics last year."
The word noon comes from the Old English nōn, which originally meant "the ninth hour." This term was borrowed from classical Latin nōna, referring to the same time of day.