chief master sergeant

noun
🔊/ˌtʃiːf ˌmɑːstə ˈsɑːdʒənt/
🔊/ˌtʃiːf ˌmæstər ˈsɑːrdʒənt/
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  1. an officer of middle rank in the US air forceTopics War and conflictc2