car‧ri‧er [countable]
1TT a company that moves goods or passengers from one place to another [↪ carry]:
an international carrier
2PMTTC a military vehicle or ship used to move soldiers, weapons etc aircraft carrier, people carrier
3MI medical someone who passes a disease or gene to other people, especially without being affected by it themselves [↪ carry]:
carriers of the lung disease, TB
4 something used for carrying something [↪ carry]:
a baby carrier
5D British English a carrier bag
6 American English a company that provides a service such as insurance or telephones

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