1. (n.) The third Sunday after Easter; -- so called because the introit is the 66th Psalm, which, in the Latin version, begins with the words, Jubilate Deo.

2. (n.) A name of the 100th Psalm; -- so called from its opening word in the Latin version.

3. (v. i.) To exult; to rejoice.

beat the drum blow the trumpet caper caracole carol celebrate chirp chirrup clap hands commemorate crow crow over dance delight dress ship exult fire a salute frisk frolic gambol gloat gloat over glory hallow hold jubilee honor joy jubilize keep lilt maffick make merry mark memorialize observe rejoice revel rollick romp signalize sing skip skip for joy solemnize solemnly mark sound a fanfare triumph whistle