jubilate /ˈd͡ʒuːbɪleɪt/noun 2verb 1forms 3 noun2 •the hundredth psalm (ninety-ninth in the Vulgate); the music to which it is set. •A call to rejoice, outburst of joyous triumph.They […] would speedily be with us in a joint jubilate on the banks of the Avon. — 1769 verb1 •To show elation or triumph; to rejoice. formsjubilated · jubilating · jubilates