Source : Webster's Revised Unabridged Dictionary (1913)

Brush \Brush\, n.
   In Australia, a dense growth of vegetation in good soil,
   including shrubs and trees, mostly small.

Brush \Brush\, n. [OE. brusche, OF. broche, broce, brosse,
   brushwood, F. brosse brush, LL. brustia, bruscia, fr. OHG.
   brusta, brust, bristle, G. borste bristle, b["u]rste brush.
   See {Bristle}, n., and cf. {Browse}.]
   1. An instrument composed of bristles, or other like
      material, set in a suitable back or handle, as of wood,
      bone, or ivory, and used for various purposes, as in
      removing dust from clothes, laying on colors, etc. Brushes
      have different shapes and names according to their use;
      as, clothes brush, paint brush, tooth brush, etc.

   2. The bushy tail of a fox.

   3. (Zo["o]l.) A tuft of hair on the mandibles.

   4. Branches of trees lopped off; brushwood.

   5. A thicket of shrubs or small trees; the shrubs and small
      trees in a wood; underbrush.

   6. (Elec.) A bundle of flexible wires or thin plates of
      metal, used to conduct an electrical current to or from
      the commutator of a dynamo, electric motor, or similar
      apparatus.

   7. The act of brushing; as, to give one's clothes a brush; a
      rubbing or grazing with a quick motion; a light touch; as,
      we got a brush from the wheel as it passed.

            [As leaves] have with one winter's brush Fell from
            their boughts.                        --Shak.

   8. A skirmish; a slight encounter; a shock or collision; as,
      to have a brush with an enemy.

            Let grow thy sinews till their knots be strong, And
            tempt not yet the brushes of the war. --Shak.

   9. A short contest, or trial, of speed.

            Let us enjoy a brush across the country. --Cornhill
                                                  Mag.

   {Electrical brush}, a form of the electric discharge
      characterized by a brushlike appearance of luminous rays
      diverging from an electrified body.

Brush \Brush\, v. t. [imp. & p. p. {Brushed}; p. pr. & vb. n.
   {Brushing}.] [OE. bruschen; cf. F. brosser. See {Brush}, n.]
   1. To apply a brush to, according to its particular use; to
      rub, smooth, clean, paint, etc., with a brush. ``A'
      brushes his hat o' mornings.'' --Shak.

   2. To touch in passing, or to pass lightly over, as with a
      brush.

            Some spread their sailes, some with strong oars
            sweep The waters smooth, and brush the buxom wave.
                                                  --Fairfax.

            Brushed with the kiss of rustling wings. --Milton.

   3. To remove or gather by brushing, or by an act like that of
      brushing, or by passing lightly over, as wind; -- commonly
      with off.

            As wicked dew as e'er my mother brushed With raven's
            feather from unwholesome fen.         --Shak.

            And from the boughts brush off the evil dew.
                                                  --Milton.

   {To brush aside}, to remove from one's way, as with a brush.
      

   {To brush away}, to remove, as with a brush or brushing
      motion.

   {To brush up}, to paint, or make clean or bright with a
      brush; to cleanse or improve; to renew.

            You have commissioned me to paint your shop, and I
            have done my best to brush you up like your
            neighbors.                            --Pope.

Brush \Brush\, v. i.
   To move nimbly in haste; to move so lightly as scarcely to be
   perceived; as, to brush by.

         Snatching his hat, he brushed off like the wind.
                                                  --Goldsmith.

Source : WordNet®

brush
     n 1: a dense growth of bushes [syn: {brushwood}, {coppice}, {copse},
           {thicket}]
     2: an implement that has hairs or bristles firmly set into a
        handle
     3: momentary contact [syn: {light touch}]
     4: conducts current between rotating and stationary parts of a
        generator or motor
     5: a minor short-term fight [syn: {clash}, {encounter}, {skirmish}]
     6: the act of brushing your teeth; "the dentist recommended two
        brushes a day" [syn: {brushing}]
     7: the act of brushing your hair; "he gave his hair a quick
        brush" [syn: {brushing}]
     8: contact with something dangerous or undesirable; "I had a
        brush with danger on my way to work"; "he tried to avoid
        any brushes with the police"

brush
     v 1: rub with a brush, or as if with a brush; "Johnson brushed
          the hairs from his jacket"
     2: touch lightly and briefly; "He brushed the wall lightly"
     3: clean with a brush; "She brushed the suit before hanging it
        back into the closet"
     4: sweep across or over; "Her long skirt brushed the floor"; "A
        gasp swept cross the audience" [syn: {sweep}]
     5: remove with or as if with a brush; "brush away the crumbs";
        "brush the dust from the jacket"; "brush aside the
        objections"
     6: cover by brushing; "brush the bread with melted butter"