Farewell (5)

'farewell' is the definition.
(adieu is a kind of farewell)
This is all the clue.
(Other definitions for adieu that I've seen before include "Leave" , "See you later" , "Parting word" , "Farewell (French)" , "12 Down" .)
'farewell' is the definition.
(I know that farewell can be written as cheerio)
This is the entire clue.
(Other definitions for cheerio that I've seen before include "Expression used when leaving" , "A final word" , "Informal farewell" , "Ta-ta" , "Farewell - drinking toast" .)
'farewell' is the definition.
(I know that goodbye is a type of farewell)
This is all the clue.
(Other definitions for goodbye that I've seen before include "Cheerio" , "so long" , "6 Down" , "Cheers" , "Adieu" .)
'farewell' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for ta-ta that I've seen before include "Bye-bye" , "Bye!" , "Cheerio" , "Adieu" , "A Farewell" .)
'farewell' is the definition.
(I know that farewell can be written as so long)
This is the entire clue.
(Other definitions for so long that I've seen before include "Informal goodbye; see you" , "Informal goodbye - protracted?" , "Goodbye (colloq.)" , ". . . . . ., Farewell', song from The Sound of Music" , "That length - goodbye!" .)
'farewell' is the definition.
This is the entire clue.
(Other definitions for tata that I've seen before include "cheerio!" , "See you" , "So long!" .)