Source : Webster's Revised Unabridged Dictionary (1913)

Rejoice \Re*joice"\, v. t.
   1. To enjoy. [Obs.] --Bp. Peacock.

   2. To give joy to; to make joyful; to gladden.

            I me rejoysed of my liberty.          --Chaucer.

            While she, great saint, rejoices heaven. --Prior.

            Were he [Cain] alive, it would rejoice his soul to
            see what mischief it had made.        --Arbuthnot.

   Syn: To please; cheer; exhilarate; delight.

Rejoice \Re*joice"\, n.
   The act of rejoicing. --Sir T. Browne.

Rejoice \Re*joice"\ (r[-e]*jois"), v. i. [imp. & p. p.
   {Rejoiced} (-joist"); p. pr. & vb. n. {Rejoicing}
   (-joi"s?ng).] [OE. rejoissen, OF. resjouir, resjoir, F.
   r['e]jouir; pref. re- re- + OF, esjouir, esjoir, F.
   ['e]jouir, to rejoice; pref. es- (L. ex-) + OF. jouir, joir,
   F. jouir, from L. gaudere to rejoice. See {Joy}.]
   To feel joy; to experience gladness in a high degree; to have
   pleasurable satisfaction; to be delighted. ``O, rejoice
   beyond a common joy.'' --Shak.

         I will be glad and rejoice in thy mercy. --Ps. xxxi. 7.

   Syn: To delight; joy; exult; triumph.

Source : WordNet®

rejoice
     v 1: feel happiness or joy [syn: {joy}]
     2: to express great joy; "Who cannot exult in Spring?" [syn: {exult},
         {triumph}, {jubilate}]
     3: be ecstatic with joy [syn: {wallow}, {triumph}]