noun

noon

NOON/nuːn/

Twelve o'clock in the daytime.

The clock shows noon while bright daylight fills the window.

A prominent analog clock showing exactly twelve, beside a window with bright daytime sky and a high sun, distinguishes noon from midnight.
Etymology

“Ninth” referred to the ninth hour of daylight, about 3 p.m., also a designated hour of prayer. The name later shifted to midday, though the reason for that change is uncertain.

In context

Old Time Radio Researchers33:40
promised it for the following day at noon it is now two minutes to twelve in the Department of Commerce building Helen Benson has left her office on a way to lunch
[1954] Lux Radio Theatre - The Day the Earth Stood Still

More examples

  • Please return your room key by noon.
  • We meet for lunch at exactly twelve noon.
  • The train leaves ten minutes before noon.

Forms

noon · noons

noonday adjective — Occurring or present in the middle of the day.

Similar words

midday
Can mean the middle of the day, not precisely twelve.
noontime
Often refers to the period around noon rather than exactly twelve.