- farewell, word of farewell - an acknowledgment or expression of goodwill at parting
--1 is a kind of acknowledgment, acknowledgement
--1 has particulars: - farewell, leave, leave-taking, parting - the act of departing politely; "he disliked long farewells"; "he took his leave"; "parting is such sweet sorrow"
--2 is a kind of departure, going, going away, leaving
--2 has particulars: valediction