int.再见！
名词告别，再见，道别的话
good-by的近义词
1. 再见：521 Bon voyage! 一路顺风! | 522 Good-by! 再见! | 523 Good night! 晚安.
2. 再见!Good night! 晚安：Bon voyage! 一路顺风! | 501 Good-by! 再见!Good night! 晚安. | Hope to see you again. 希望能再见到你.
noun
1. good-by是什么意思
1. a farewell remark
e.g. they said their good-byes
Synonym: adieu adios arrivederci auf wiedersehen au revoir bye bye-bye cheerio goodby good-bye goodbye good day sayonara so long