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English definition of “captain”

captain

noun     /ˈkæp.tɪn/ US  /-tən/
B1 [C] the leader of a sports team: It's unusual to have a goalkeeper as (the) captain of a football team. B2 [C] the person in charge of a ship or an aircraft: This is your captain speaking. We expect to be landing at London Heathrow in an hour's time. [C] (also Captain) an officer's rank in the army or navy, or in the US air force, or in the US police and fire departments: The captain gave him his orders. Captain Lane/Alex Lane [as form of address] Yes, Captain.General ranks in the armed forces
(Definition of captain noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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