Source : Webster's Revised Unabridged Dictionary (1913)

Applaud \Ap*plaud"\, v. t. [imp. & p. p. {Applauded}; p. pr. &
   vb. n. {Applauding}.] [L. applaudere; ad + plaudere to clash,
   to clap the hands: cf. F. applaudir. Cf. {Explode}.]
   1. To show approval of by clapping the hands, acclamation, or
      other significant sign.

            I would applaud thee to the very echo, That should
            applaud again.                        --Shak.

   2. To praise by words; to express approbation of; to commend;
      to approve.

            By the gods, I do applaud his courage. --Shak.

   Syn: To praise; extol; commend; cry up; magnify; approve. See
        {Praise}.