valedictory valedictory /ˌvæləˈdɪktɝi/

adjective

1. Of a speech expressing leave-taking  ( valedictory )
   of a speech expressing leave-taking
    A valedictory address
   a valedictory address
   
2. Of or relating to an occasion or expression of farewell  ( valedictory )
   of or relating to an occasion or expression of farewell
    A valedictory address
   a valedictory address
    Valedictory praise for his uniformly manly course
   valedictory praise for his uniformly manly course
    A suitable valedictory gesture
   a suitable valedictory gesture
   

noun

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