Definition of carrier noun from the Oxford Advanced American Dictionary

     

    carrier

     noun
    noun
    NAmE//ˈkæriər//
     
     
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  1. 1a company that carries goods or passengers from one place to another, especially by air Delta Air Lines, the third-largest carrier in the U.S.
  2. 2 a person or thing that carries something Aquarius, the Water Carrier a baby carrier (= for carrying a baby on your back or in front of you)
  3. 3 a company that provides a telephone or Internet service a telecommunications carrier cell phone carriers
  4. 4a person or animal that passes a disease to other people or animals but does not suffer from it
  5. 5 a military vehicle or ship that carries soldiers or equipment from one place to another an armored personnel carrier see also aircraft carrier
  6. 6 a metal frame that is attached to a bicycle and used for carrying bags
See the Oxford Advanced Learner's Dictionary entry: carrier