Search Result for "valediction":
Wordnet 3.0

NOUN (2)

1. a farewell oration (especially one delivered during graduation exercises by an outstanding member of a graduating class);
[syn: valediction, valedictory address, valedictory oration, valedictory]

2. the act of saying farewell; 



The Collaborative International Dictionary of English v.0.48:

Valediction \Val`e*dic"tion\, n. [L., valedicere, valedictum, to
   say farewell; vale farewell (imperative of valere to be
   strong or well) + dicere to say. See Valiant, Diction.]
   A farewell; a bidding farewell. --Donne.
   [1913 Webster]
   [1913 Webster]