1. good-bye - Noun
2. good-bye - Interjection
Farewell; a form of address used at parting. See the last Note under By, prep.
Source: Webster's dictionarygood bye
You and I will meet again When we're least expecting it. One day in some far off place I will recognize your face. I won't say good-bye my friend, For you and I will meet again. Tom Petty
We all have to find our own ways to say good-bye. Sherman Alexie
Let them go, I tell myself. Say good-bye and forget them. I do my best, thinking of them one by one, releasing them like birds from the protective cages inside me, locking the doors against their return. Suzanne Collins
What is that feeling when you're driving away from people and they recede on the plain till you see their specks dispersing? - it's the too-huge world vaulting us, and it's good-bye. But we lean forward to the next crazy venture beneath the skies. Jack Kerouac
Say good-bye to Pat, say good-bye to Jack and say good-bye to yourself, because you're a nice guy. Marilyn Monroe
Every meeting is the beginning of a good-bye. Japanese Proverb