Definition of throw away phrasal verb from the Oxford Advanced Learner's Dictionary

  

throw away

 phrasal verb
phrasal verb
 
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Phrasal Verbs
  1. 1  (also throw somethingout) to get rid of something that you no longer want I don't need that—you can throw it away. That old chair should be thrown away.
  2. 2  to fail to make use of something; to waste something to throw away an opportunity You must take the exam—you can't throw away all that work! see also throwaway
See the Oxford Advanced American Dictionary entry: throw away