Tan·noy™BrE /ˈtænɔɪ/ 🔊NAmE /ˈtænɔɪ/ 🔊 noun (BrE) a system with loudspeakers used for giving information in a public place 天朗扩音系统◆to make an announcement over the Tannoy通过天朗扩音系统发布通知