说拜拜的英文是bye。英文单词bye可作感叹词和名词，作为感叹词时，中文翻译为“再见”、“再会”；作为名词时，中文翻译为“轮空”，即参赛者无对手而自动进入下一轮比赛，其复数形式为byes。
bye的基本含义及用法介绍
1、作为感叹词，意为再见;再会。
例句：Bye! See you next week.
再见！下星期再会。
She waved bye-bye and got into the car.
她挥手道别后就钻进了汽车。
Bye for now Dad!
再见了老爸！
Bye for now! I'll catch you later.
再见！下次再谈。
Please come in, say good bye to your mother.
请进，跟妈妈再见。
Good bye and hope to see all of you soon.
再见吧。希望能尽快见到你们所有人。
Good bye, biology and geography of junior high school.
再见了，初中生物、初中地理。
2、作为名词，意为轮空(参赛者无对手而自动进入下一轮比赛)。
例句：Study on the Problem of Bye in Elimination Tournaments
淘汰制竞赛的轮空问题研究
On the ITTF Bye Position Number Form
对国际乒联《轮空位置号码表》的探讨
In this paper, the property of the problem of bye in competition sequence of the round robin system and ways to solve it were discussed thoroughly by adopting mathematical argumentation.
本研究采用数学论证法，就循环制竞赛次序中轮空问题的性质及其解决途径展开了深入探讨。
