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Synonyms for Captain (same or very similar meaning)

WordNet sense 1 (an officer who is licensed to command a merchant ship):
master, skipper, sea captain

WordNet sense 2 (the leader of a group of people):

WordNet sense 3 (a policeman in charge of a precinct):
police captain, police chief

WordNet sense 4 (the pilot in charge of an airship):
senior pilot

WordNet sense 5 (a dining-room attendant who is in charge of the waiters and the seating of customers):
headwaiter, maitre d', maitre d'hotel

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