Source : Webster's Revised Unabridged Dictionary (1913)

Ambush \Am"bush\, n. [F. emb[^u]che, fr. the verb. See {Ambush},
   v. t.]
   1. A disposition or arrangement of troops for attacking an
      enemy unexpectedly from a concealed station. Hence: Unseen
      peril; a device to entrap; a snare.

            Heaven, whose high walls fear no assault or siege Or
            ambush from the deep.                 --Milton.

   2. A concealed station, where troops or enemies lie in wait
      to attack by surprise.

            Bold in close ambush, base in open field. --Dryden.

   3. The troops posted in a concealed place, for attacking by
      surprise; liers in wait. [Obs.]

            The ambush arose quickly out of their place. --Josh.
                                                  viii. 19.

   {To lay an ambush}, to post a force in ambush.

Ambush \Am"bush\, v. t. [imp. & p. p. {Ambushed}; p. pr. & vb.
   n. {Ambushing}.] [OE. enbussen, enbushen, OF. embushier,
   embuissier, F. emb[^u]cher, embusquer, fr. LL. imboscare; in
   + LL. boscus, buscus, a wood; akin to G. bush, E. bush. See
   {Ambuscade}, {Bu?h}.]
   1. To station in ambush with a view to surprise an enemy.

            By ambushed men behind their temple ?ai?, We have
            the king of Mexico betrayed.          --Dryden.

   2. To attack by ambush; to waylay.

Ambush \Am"bush\, v. i.
   To lie in wait, for the purpose of attacking by surprise; to
   lurk.

         Nor saw the snake that ambushed for his prey.
                                                  --Trumbull.

Source : WordNet®

ambush
     n : the act of concealing yourself and lying in wait to attack
         by surprise [syn: {ambuscade}, {lying in wait}, {trap}]
     v 1: wait in hiding to attack [syn: {scupper}, {bushwhack}, {waylay},
           {lurk}, {ambuscade}, {lie in wait}]
     2: hunt (quarry) by stalking and ambushing [syn: {still-hunt}]

Source : Free On-Line Dictionary of Computing

AMBUSH
     
         A language for {linear programming} problems in a
        materials processing and transportation network.
     
        ["AMBUSH - An Advanced Model Builder for Linear Programming",
        T.R. White et al, National Petroleum Refiners Assoc Comp Conf
        (Nov 1971)].
     
        (1995-06-19)