good-bye [ noun ] a farewell remark <noun.communication> they said their good-byes
Good-by \Good`-by"\, Good-bye \Good`-bye"\, n. or interj. [A contraction of God be with ye (God be w[i^] ye, God bw' ye, God bwye).] Farewell; a form of address used at parting. See the last Note under {By}, prep. --Shak.