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Definition of senior master sergeant noun from the Oxford Advanced Learner's Dictionary

senior master sergeant

noun
 
/ˌsiːniə ˈmɑːstə sɑːdʒənt/
 
/ˌsiːniər ˈmæstər sɑːrdʒənt/
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  1. an officer of middle rank in the US air forceTopics War and conflictc2
See senior master sergeant in the Oxford Advanced American Dictionary
buttercup
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