0 the part of every 24-hour period when it is dark because there is very little light from the sun -- 夜晚,夜间,黑夜
1 the period of time between the late afternoon and going to bed; the evening -- 晚上(指傍晚至就寝前的时段)
UK Let's have a night out on Saturday. 我们星期六晚上出去玩吧。
I need a night out with the girls this weekend. 我这个周末需要跟女生朋友们出去玩一玩。
The first/opening night of her new movie was a great success. 她的新电影的首映相当成功。
When's the last night of your show? 你什么时候演最后一场?
She's a singer in a bar by night and a secretary by day. 她晚上在酒吧唱歌,白天则从事秘书工作。
Let's go out on Saturday night. 我们周六晚上出去玩好吗?
2 a friendly way of saying goodbye when you leave someone in the evening or before going to bed or to sleep -- (晚上与人分别时礼貌地道别用语)晚安
Night, sweetheart! Sleep well! 甜心,晚安!好好睡!