空くう曹そう長ちょうMeaningsNoun1. senior master sergeant (JASDF)Kanji used空empty air曹cadet長longComposed of空くうempty air; sky; shunyata (the lack of an immutable intrinsic nature within any phenomenon); emptiness; air force; fruitlessness; meaninglessness; void (one of the five elements); empty (e.g. set)Noun曹そう長ちょうmaster sergeant; sergeant major (JSDF)Noun