English

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

      

    retainer

     noun
    noun
    BrE BrE//rɪˈteɪnə(r)//
     
    ; NAmE NAmE//rɪˈteɪnər//
     
     
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  1. 1a sum of money that is paid to somebody to make sure they will be available to do work when they are needed The agency will pay you a monthly retainer.
  2. 2(British English) a small amount of rent that you pay for a room, etc. when you are not there in order to keep it available for your use Check whether full rent or a retainer is required during vacations.
  3. 3(North American English) a device that keeps a person’s teeth straight after they have had orthodontic treatment with braces
  4. 4(old-fashioned) a servant, especially one who has been with a family for a long time
See the Oxford Advanced American Dictionary entry: retainer