Example sentence
もう 宿題をしましたか？How もう is used
もう means already or yet when used to describe an action that has been completed or a state that has been reached. In a negative sentence, it means no longer or any more. もう also means another, more, or again. It is used to request or describe an additional quantity (e.g., もう一回- one more time, もう一杯- another cup).