JubilatePronunciation: /ˌdʒuːbɪˈlɑːteɪ/Definition of Jubilate noun Psalm 100, beginning Jubilate deo ‘rejoice in God’, especially as used as a canticle in the Anglican service of matins. a musical setting of the Jubilate. Origin:Latin, 'shout for joy!', imperative of jubilare (see jubilate)Jubilate in other Oxford dictionaries Definition of Jubilate in the US English dictionary