IPA: //ˈnjuːsˌkɑːstər//
KK: /ˈnuːsˌkæstər/
A person who presents news on television or radio.
The newscaster reported the latest updates on the weather.
Newscaster → It is formed from "news" (from Old English *news*, meaning new information or reports) and "caster" (from Old English *castan*, meaning to throw or broadcast). A newscaster is someone who broadcasts new information or reports to the public.
Think of someone 'throwing' or 'broadcasting' ('caster') 'new information' ('news') to the audience.