Noon /(nōn)/

Noon

a.
  1. No. See the Note under No. [Obs.]

Noon

n.
  1. The middle of the day; midday; the time when the sun is in the meridian; twelve o'clock in the daytime.
  2. Hence, the highest point; culmination.
    In the very noon of that brilliant life which was destined to be so soon, and so fatally, overshadowed.

Phrases & Compounds
High noon
the exact meridian; midday.
Noon of night
midnight.

Noon

a.
  1. Belonging to midday; occurring at midday; meridional.

Noon

v. i.
  1. To take rest and refreshment at noon.