valediction
[,væli'dikʃәn]
n. 告别, 告别辞



valediction
[ noun ]

1. a farewell oration (especially one delivered during graduation exercises by an outstanding member of a graduating class)

<noun.communication>

2. the act of saying farewell

<noun.act>

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.