password - definition and synonyms

 
noun [countable] 

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/ˈpɑːsˌwɜː(r)d/
singularpassword
pluralpasswords
  1. a secret word or phrase that you need in order to get into a room, building, or area
    1. a.
      computing the numbers or letters that you have to put into a computer in order to be able to use the system