announcer

Etymology

From announce + -er.

noun

1. One who makes announcements.
   radio announcer
   There were passing moments when it threatened to be a difficult night and, with the game goalless at half-time, the stadium announcer sounded almost apologetic when he relayed the news that Ukraine, kicking off an hour earlier, had gone to the top of the group by beating Poland. October 11 2013, Daniel Taylor, “Andros Townsend calms England's nerves in taming of Montenegro”, in The Guardian