radio1 Pronunciation: /ˈreɪdiəʊ/Translate radio | into French | into German | into Italian Spanish translation of radion (pl -os) 1 c (receiver) radio (m) (AmL exc CS), radio (f) (CS, Esp) I heard it on the radio = lo oí por el or (CS, Esp) la radio 2 u (medium) radio (f)radio in other Oxford dictionaries Definition of radio in the British & World English dictionary Definition of radio in the US English dictionary