noun

• (uncountable) Wild vegetation, generally larger than grass but smaller than trees. See shrubland.
  "We broke away toward the north, the tribe howling on our track. Across the open spaces we gained, and in the brush they caught up with us, and more than once it was nip and tuck."
• (zoology) A tuft of hair on the mandibles.
• (archaic) A short contest, or trial, of speed.
  "1860, Anthony Trollope, Framley Parsonage (originally published in Cornhill Magazine Mark and Lord Lufton had been boys together, and his lordship knew that Mark in his heart would enjoy a brush across the country quite as well as he himself."
• (music) An instrument, resembling a brush, used to produce a soft sound from drums or cymbals.

verb

• (transitive) To clean with a brush.
  "Brush your teeth."
• (transitive) To untangle or arrange with a brush.
  "Brush your hair."
• (transitive) To apply with a brush.
  "I am brushing the paint onto the walls."
• (transitive) To remove with a sweeping motion.
  "She brushed the flour off my clothes."