1N-VAR 晚餐;晚饭 Some people refer to the main meal eaten in the early part of the evening as supper . 晚餐;晚饭
Some guests like to dress for supper.
一些客人喜欢穿礼服去赴晚宴。Y See Usage Note at meal. 见 meal 的用法说明
2N-VAR 夜宵;宵夜Supper is a simple meal eaten just before you go to bed at night. 夜宵;宵夜
She gives the children their supper, then puts them to bed.
她让孩子们吃了点夜宵，然后让他们上床睡觉。
3PHRASE [VERB and NOUN inflect]打点;疏通 If someone has to sing for their supper, they have to do a job before they are allowed to do something they want to do. 打点;疏通
They would have to 'sing for their supper' during the exhausting official round of duties.