A person who makes public announcements in a town or village, traditionally by shouting in the streets. The town crier rang his bell and announced the arrival of the king.
A person who cries or weeps. The movie was so touching that it turned even the toughest viewer into a crier.
An auctioneer or street vendor who loudly advertises goods for sale. The market crier shouted the prices of fresh fish to passers-by.