The Collaborative International Dictionary of English v.0.48:

Morning \Morn"ing\ (m[^o]rn"[i^]ng), n. [OE. morning, morwening.
   See Morn.]
   1. The first or early part of the day, variously understood
      as the earliest hours of light, the time near sunrise; the
      time from midnight to noon, from rising to noon, etc.
      [1913 Webster]

   2. The first or early part; as, the morning of life.
      [1913 Webster]

   3. The goddess Aurora. [Poetic] --Shak.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Morning \Morn"ing\, a.
   Pertaining to the first part or early part of the day; being
   in the early part of the day; as, morning dew; morning light;
   morning service.
   [1913 Webster]

         She looks as clear
         As morning roses newly washed with dew.  --Shak.
   [1913 Webster]

   Morning gown, a gown worn in the morning before one is
      dressed for the day.

   Morning gun, a gun fired at the first stroke of reveille at
      military posts.

   Morning sickness (Med.), nausea and vomiting, usually
      occurring in the morning; -- a common sign of pregnancy.


   Morning star.
   (a) Any one of the planets (Venus, Jupiter, Mars, or Saturn)
       when it precedes the sun in rising, esp. Venus. Cf.
       Evening star, Evening.
   (b) Satan. See Lucifer.
       [1913 Webster]

             Since he miscalled the morning star,
             Nor man nor fiend hath fallen so far. --Byron.
       [1913 Webster]
   (c) A weapon consisting of a heavy ball set with spikes,
       either attached to a staff or suspended from one by a
       chain.

   Morning watch (Naut.), the watch between four a. m. and
      eight a. m..
      [1913 Webster] Morning glory

WordNet (r) 3.0 (2006):

morning
    n 1: the time period between dawn and noon; "I spent the morning
         running errands" [syn: morning, morn, morning time,
         forenoon]
    2: a conventional expression of greeting or farewell [syn: good
       morning, morning]
    3: the first light of day; "we got up before dawn"; "they talked
       until morning" [syn: dawn, dawning, morning, aurora,
       first light, daybreak, break of day, break of the
       day, dayspring, sunrise, sunup, cockcrow] [ant:
       sundown, sunset]
    4: the earliest period; "the dawn of civilization"; "the morning
       of the world" [syn: dawn, morning]