–interjection
1.goodby; may you fare well: may we meet again in happier times.
2.an expression of good wishes: They made their farewells and left.
3.leave-taking; departure: a fond farewell.
4.a party given to a person who is about to embark on a long journey etc.
–adjective
5.parting; valedictory; final: a farewell performance.