1 one of the twelve periods of time into which the year is divided 月；月份: They are starting work next month. 他们将于下个月开始工作。Have you seen this month's 'Vogue'? 你有没有看过这个月的《时尚》杂志？

2 the period of about four weeks from a certain date in one month to the same date in the next, for example 13 May to 13 June; a calendar month 一个月的时间: ‘How long will you be away?’ ‘For about a month.’ “你要离开多久？”“大约一个月。”a six-month course 一门为期六个月的课程