GOODBYE

[informal] bye exclamation, [noun] - (the word) used when someone leaves or is leftGoodbye, Robert, and thank you again for a lovely dinner.See you at work tomorrow. Goodbye!Don't go without saying goodbye to me, will you?She kissed her children goodbye before leaving for work.They said a tearful goodbye at the airport.We said our goodbyes, and left.I hate long drawn-out goodbyes (= acts of leaving).It's getting late, so we really should say goodbye (= leave).She only finished sixth - that surely means goodbye to (= accepting that there is no possibility of) a place in the final.