Noun

1. A shout of approbation, favor, or assent; eager expression of approval; loud applause.

   On such a day, a holiday having been voted by acclamation, an ordinary walk would not satisfy the children. -Robert Southey.

2. The process of electing a person to a post in the absence of other nominees.
3. (antiques): A representation, in sculpture or on medals, of people expressing joy.

   Acclamation medals are those on which laudatory acclamations are recorded. - James Elmes

4. Without opposition in an election.

   With no one running against her, she won by Acclamation.