一いっ曹そういっそうじ字FuriganaAudioMeanings1nounmaster sergeant (JGSDF)abbreviationmilitary›Abbreviation of 一等陸曹 (いっとうりくそう), a rank in the Japan Ground Self-Defense Force. Used in military contexts.See also: 一等陸曹彼かれは一いっ曹そうに昇しょう進しんした。Break this sentence down in the analyzerHe was promoted to master sergeant.一いっ曹そうとして部ぶ隊たいを指し導どうする責せき任にんがある。Break this sentence down in the analyzerAs a master sergeant, he has the responsibility to lead the unit.