From Longman Dictionary of Contemporary EnglishRelated topics: Transport, Military, Motor vehicles, Illness & disability, Daily lifecarriercar‧ri‧er /ˈkæriə $ -ər/ noun [countable]1BBCTTa company that moves goods or passengers from one place to another → carryan international carrier2PMTTCa militaryvehicle or ship used to move soldiers, weapons etc →aircraft carrier, people carrier3MI medical someone who passes a disease or gene to other people, especially without being affected by it themselves → carrycarriers of the lung disease, TB4TTBsomething used for carrying something → carrya baby carrier5D British English a carrierbag6American English a company that provides a service such as insurance or telephonesExamples from the Corpuscarrier• Carrie had Nick's case as well as her own and a carrier bag with a broken stringhandle.• a carrier with routes to the easternU.S.• So the last hope of hitting the enemycarriers was reluctantly abandoned.• We give a gift to the lettercarrier at Christmas.• a newspapercarrier• Yet Gloria herself never seemed to hold on to more than the bareessentials that they had in their two paper carriers.• Fuchida ordered his remaining 324 aircraft back to the waitingcarriers but stayed as long as he could over the target.From Longman Business Dictionarycarriercar‧ri‧er /ˈkæriə-ər/ noun [countable]TRANSPORTORGANIZATIONSa person or company whose job is to TRANSPORT goods from one place to anothernational carriers like Pickfords, with their own warehouses and regular clientelethe American overseas air carrier, United Airlines →bulk carrier →common carrier →contract carrier →limited carrier →private carrier →public carrier