farewell farewell /ˌfɛrˈwɛl/

interjection

1. () Informal terms of departure or farewell.  ( vale [Archaic] , bye [Informal] , bye-bye [Informal] , farewell , good-by [American] , good-bye [ N. American] , goodbye , sayonara [Informal, American] , so long [Informal] , cheers [Informal, British] , chin-chin [Informal, British] , ta-ra [Informal, UK] , ta-ta [Informal, British] , toodle-oo [Informal] , toodle-pip [Informal, British] )
   Informal terms of departure or farewell.
   

noun

1. () An acknowledgment or expression of goodwill at parting  ( word of farewell , farewell )
   an acknowledgment or expression of goodwill at parting
   
2. The act of departing politely  ( farewell , leave , leave-taking , parting )
   the act of departing politely
    He disliked long farewells
   he disliked long farewells
    He took his leave
   he took his leave
    Parting is such sweet sorrow
   parting is such sweet sorrow