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Sergeant, sometimes serjeant, (normally abbreviated to Sgt) is a rank used in many armies, police forces, and other uniformed organizations. Its origins are in the Latin ''serviens'', "one who serves", through the French term ''sergent''. In most armies the rank of sergeant corresponds to command of a squad (or section). In Commonwealth armies, it is a more senior rank, corresponding roughly to a platoon second-in-command. In the United States Army, sergeant is a more junior rank corresponding to a four-man fireteam leader. More senior non-commissioned ranks are often variations on sergeant, for example staff sergeant, first sergeant and sergeant major. Many countries use the rank of sergeant, whether in English or using a cognate with the same origin in another language. The equivalent rank in Arab armies is ''raqeeb'', meaning "overseer" or "watcher". ==Usage== In most non-naval military or paramilitary organizations, the various grades of sergeant are non-commissioned officers (NCOs) ranking above privates and corporals, and below warrant officers and commissioned officers. The responsibilities of a sergeant differ from army to army. There are usually several ranks of sergeant, each corresponding to greater experience and responsibility for the daily lives of the soldiers of larger units. In medieval European usage, a sergeant was simply any attendant or officer with a protective duty. Any medieval knight or military order of knighthood might have "sergeants-at-arms", meaning servants able to fight if needed. The etymology of the term is from Anglo-French ''sergant, serjant'' "servant, valet, court official, soldier", from Middle Latin ''servientum'' "servant, vassal, soldier". ==Australia== 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Sergeant」の詳細全文を読む スポンサード リンク
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