[n] a farewell remark; "they said their good-byes"
[n] you advance to the next round in a tournament without playing an opponent; "he had a bye in the first round"
Synonyms
adieu, adios, arrivederci, au revoir, auf wiedersehen, bye-bye, cheerio, good day, goodby, good-by, goodbye, good-bye, pass, sayonara, so long