Source : WordNet®

adieu
     n : a farewell remark; "they said their good-byes" [syn: {adios},
          {arrivederci}, {auf wiedersehen}, {au revoir}, {bye}, {bye-bye},
          {cheerio}, {good-by}, {goodby}, {good-bye}, {goodbye}, {good
         day}, {sayonara}, {so long}]
     [also: {adieux} (pl)]

adieux
     See {adieu}