goodbye

Noun

Synonyms: adieu adios arrivederci auf wiedersehen au revoir bye bye-bye cheerio good-by goodby good-bye good day

WordNet 3.0

Noun (1)

a farewell remark“they said their good-byes”Synonyms: adieu adios arrivederci auf wiedersehen au revoir bye bye-bye cheerio good-by goodby good-bye good day sayonara so long

Webster's Dictionary (GCIDE)

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. [1913 Webster]