Acclaim means to publicly and enthusiastically praise.
Acclaim comes under verb.
Synonyms: applaud, cheer, exalt, extol, laud, compliment, hail.
Antonyms: criticize, denounce, disapprove, condemn.
The people in the city acclaimed their local hero.
The critics acclaimed the actor's performance; they praised and applauded it.
In our company the board of directors acclaimed at the new concept made by Mr. Ravi.