bye
interjectionUK /baɪ/
US /baɪ/
A word you say when you leave or when someone else leaves.
Bye, see you tomorrow!
OTHER MEANINGS
2. In sports, a bye means you move to the next round without playing because you have no opponent.
Our team got a bye in the first round of the tournament.
3. Something that is not the main point or is beside the matter.
By the bye, did you remember to bring the tickets?
4. A short sleep or rest, often used in the phrase 'by the bye'.
He took a quick bye on the sofa after lunch.