'Shouter' definitions:

Definition of 'shouter'

From: WordNet
noun
Someone who communicates vocally in a very loud voice [syn: roarer, bawler, bellower, screamer, screecher, shouter, yeller]

Definition of 'Shouter'

From: GCIDE
  • Shouter \Shout"er\, n. One who shouts. [1913 Webster]