v.使轻松，变得轻松；发亮，变亮；照亮；减轻，变轻；闪电；使变淡
Her heart lightened when she heard the news. 听到这消息，她轻松了。
His face lightened as she apologized. 她向他道歉时，他喜形于色。
A solitary candle lightened the darkness of the room. 一支孤烛使黑暗的房间亮了起来。
If you want to lighten the weight, had better eat little bread. 如果你想减轻体重，最好少吃面包。
The boat began to lighten, and no fresh wave swamped us. 船轻点了，风浪也没有再来与我们为难。
v.启发；开导；教导
