From Longman Dictionary of Contemporary Englishbosunbo‧sun /ˈbəʊsən $ ˈboʊ-/ noun [countable] an officer on a ship whose job is to organize the work and look after the equipment SYN boatswain
Examples from the Corpus
bosun• That's the call for the leading hands to collect the rations from the rum bosun.• In this case the bosun responsible was asleep. 