Definition of brush noun from the Oxford Advanced Learner's Dictionary

      

    brush

     noun
    noun
    BrE BrE//brʌʃ//
     
    ; NAmE NAmE//brʌʃ//
     
    Art equipment, Plants
     
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  1. 1   [countable] an object made of short stiff hairs (called bristles ) or wires set in a block of wood or plastic, usually attached to a handle. Brushes are used for many different jobs, such as cleaning, painting and tidying your hair. a paintbrush a hairbrush a toothbrush brush strokes (= the marks left by a brush when painting) a dustpan and brush Apply the paint with a fine brush. See related entries: Art equipment
  2. 2[singular] an act of brushing to give your teeth a good brush
  3. 3[singular] a light touch made in passing something/somebody the brush of his lips on her cheek
  4. 4[countable] brush with somebody/something a short unfriendly meeting with somebody; an occasion when you nearly experience something unpleasant She had a nasty brush with her boss this morning. In his job he's had frequent brushes with death. a brush with the law
  5. 5[uncountable] land covered by small trees or bushes a brush fire See related entries: Plants
  6. 6 [countable] the tail of a fox
  7. Word Originnoun senses 1 to 4 and noun sense 6 Middle English: noun from Old French broisse; verb partly from Old French brosser ‘to sweep’. noun sense 5 Middle English: from Old French broce, perhaps based on Latin bruscum, denoting an excrescence on a maple.Extra examples Remove all the rust with a wire brush. Scrub the wood thoroughly with water and a stiff brush. She ran a brush through her hair. She took a can of paint and dipped her brush in it. The artist has used tiny brush strokes. to give your hair/​teeth a good brushIdioms
    be tarred with the same brush (as somebody)
     
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    to be thought to have the same faults, etc. as somebody else
    (British English, informal) very silly
    paint something with a broad brush
     
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    to describe something in a general way, ignoring the details
See the Oxford Advanced American Dictionary entry: brush