midnight Meaning, Definition & Usage

  1. noun 12 o'clock at night; the middle of the night
    • young children should not be allowed to stay up until midnight

WordNet

Mid"night` noun
Etymology
AS. midniht.
Definitions
  1. The middle of the night; twelve o'clock at night.
    The iron tongue of midnight hath told twelve. Shak.
Mid"night` adjective
Definitions
  1. Being in, or characteristic of, the middle of the night; as, midnight studies; midnight gloom. "Midnight shout and revelry." Milton.

Webster 1913