loudhailer
/laʊdˈheɪlə
/noun British
An electronic device used to amplify the sound of a person’s voice so that it can be heard at a distance; a megaphone.On Tuesday, police with loudhailers went in front of the Stand to alert punters that professional teams of pickpockets were working in the area....
- We didn't realise until the cop cars and loudhailers appeared.
- Floods also caused some rail services to be diverted, and the Environment Agency issued warnings via loudhailers that the River near the Rail Station was running high.
