n. The ninth hour of the day according to Roman and ecclesiastical reckoning, namely the ninth hour from sunrise, or the middle hour between midday and sunsetāthat is, about 3 p. m.; later, the ecclesiastical hour of nones, at any time from midday till the ninth hour.n. Midday; the time when the sun is in the meridian; twelve o'clock in the daytime.n. The middle or culminating point of any course; the time of greatest brilliancy or power; the prime.n. plural The noonday meal. Compare nones, 2.Meridional.To rest at noon or during the warm part of the day.A Middle English form of none.