tannoy /ˈtænɔɪ/noun 1verb 1forms 3 noun1 •(UK, informal) A public address system.Although the supermarket tannoy was bravely broadcasting Rigoletto, its meat counter was thick with wurst and its wine shelves loaded with Liebfraumilch. — 1987 verb1 •(UK, Commonwealth) To transmit, or communicate with, by means of a public address system. formstannoyed · tannoying · tannoys