Answer: goodbye

AnswerCrossword Clue
GOODBYETosti's well-known song.
goodbyefarewell
goodbyea remark or gesture on parting, also GOODBY
GOODBYEAloha, sometimes
GOODBYEPhilip Roth title word
GOODBYE"The Weakest Link" phrase
GOODBYE"Adieu"
GOODBYESimon's "The ... Girl"
GOODBYEThe last word.
GOODBYEPeoria farewell!
GOODBYE"Farewell!"
GOODBYE"See you later"
GOODBYE"... Yellow Brick Road" (Elton John tune)
GOODBYEWord to Mr. Chips
GOODBYESplitting word?
GOODBYESo long
GOODBYEParting word