Source : Webster's Revised Unabridged Dictionary (1913)

Sage \Sage\, a. [Compar. {Sager}; superl. {Sagest}.] [F., fr. L.
   sapius (only in nesapius unwise, foolish), fr. sapere to be
   wise; perhaps akin to E. sap. Cf. {Savor}, {Sapient},
   {Insipid}.]
   1. Having nice discernment and powers of judging; prudent;
      grave; sagacious.

            All you sage counselors, hence!       --Shak.

   2. Proceeding from wisdom; well judged; shrewd; well adapted
      to the purpose.

            Commanders, who, cloaking their fear under show of
            sage advice, counseled the general to retreat.
                                                  --Milton.

   3. Grave; serious; solemn. [R.] ``[Great bards] in sage and
      solemn tunes have sung.'' --Milton.

Sage \Sage\, n. [OE. sauge, F. sauge, L. salvia, from salvus
   saved, in allusion to its reputed healing virtues. See
   {Safe}.] (Bot.)
   (a) A suffruticose labiate plant ({Salvia officinalis}) with
       grayish green foliage, much used in flavoring meats, etc.
       The name is often extended to the whole genus, of which
       many species are cultivated for ornament, as the scarlet
       sage, and Mexican red and blue sage.
   (b) The sagebrush.

   {Meadow sage} (Bot.), a blue-flowered species of Salvia ({S.
      pratensis}) growing in meadows in Europe.

   {Sage cheese}, cheese flavored with sage, and colored green
      by the juice of leaves of spinach and other plants which
      are added to the milk.

   {Sage cock} (Zo["o]l.), the male of the sage grouse; in a
      more general sense, the specific name of the sage grouse.
      

   {Sage green}, of a dull grayish green color, like the leaves
      of garden sage.

   {Sage grouse} (Zo["o]l.), a very large American grouse
      ({Centrocercus urophasianus}), native of the dry sagebrush
      plains of Western North America. Called also {cock of the
      plains}. The male is called {sage cock}, and the female
      {sage hen}.

   {Sage hare}, or {Sage rabbit} (Zo["o]l.), a species of hare
      ({Lepus Nuttalli, or artemisia}) which inhabits the arid
      regions of Western North America and lives among
      sagebrush. By recent writers it is considered to be merely
      a variety of the common cottontail, or wood rabbit.

   {Sage hen} (Zo["o]l.), the female of the sage grouse.

   {Sage sparrow} (Zo["o]l.), a small sparrow ({Amphispiza
      Belli}, var. {Nevadensis}) which inhabits the dry plains
      of the Rocky Mountain region, living among sagebrush.

   {Sage thrasher} (Zo["o]l.), a singing bird ({Oroscoptes
      montanus}) which inhabits the sagebrush plains of Western
      North America.

   {Sage willow} (Bot.), a species of willow ({Salix tristis})
      forming a low bush with nearly sessile grayish green
      leaves.

Sage \Sage\, n.
   A wise man; a man of gravity and wisdom; especially, a man
   venerable for years, and of sound judgment and prudence; a
   grave philosopher.

         At his birth a star, Unseen before in heaven, proclaims
         him come, And guides the Eastern sages.  --Milton.

Source : WordNet®

sage
     adj 1: having wisdom that comes with age and experience
     2: of the gray-green color of sage leaves [syn: {sage-green}]

sage
     n 1: a mentor in spiritual and philosophical topics who is
          renowned for profound wisdom
     2: aromatic fresh or dried gray-green leaves used widely as
        seasoning for meats and fowl and game etc
     3: any of various plants of the genus Salvia; a cosmopolitan
        herb [syn: {salvia}]

Source : Free On-Line Dictionary of Computing

SAGE
     
        1.  {Systems Administrators Guild}.
     
        2.  {Semi-Automatic Ground Environment}.
     
        (2001-01-27)