GOODBYEthe act of saying goodbye, especially in a formal speech 〔尤指正式讲话中的〕告别,告别致辞 → farewell
Examples from the Corpus
valediction• It sounded more like a courtesy than a threat, a valediction.• Yet there was not even a hint of valediction in last week's speech on Capitol Hill.• Agassi's victory speech had more than a touch of valediction.