Wiktionary
good bye
interj. (alternative form of goodbye English)
Wikipedia
Good bye
Good Bye (Cali Gari album)
Good Bye (EP)
Goodbye is the re-issued EP by Hahm Eun-jung (also known as Elsie). The title song is Goodbye, which is an OST of Eun-jung's Webdrama Only for You.
Usage examples of "good bye".
The last thing Miss Mathilda heard was the good Anna bidding foolish Peter say good bye and be sure to remember Miss Mathilda.