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dis·turb  audio  (d-stūrb) KEY 

TRANSITIVE VERB:
dis·turbed, dis·turb·ing, dis·turbs
  1. To break up or destroy the tranquillity or settled state of: "Subterranean fires and deep unrest disturb the whole area" (Rachel Carson).
  2. To trouble emotionally or mentally; upset.
    1. To interfere with; interrupt: noise that disturbed my sleep.
    2. To intrude on; inconvenience: Constant calls disturbed her work.
  3. To put out of order; disarrange.

ETYMOLOGY:
Middle English distourben, from Old French destourber, from Latin disturbre : Latin dis-, dis- + Latin turbre, to agitate (from turba, confusion, probably from Greek turb)

OTHER FORMS:
dis·turber(Noun), dis·turbing·ly(Adverb)


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