input method editor UK /ˈɪnˌpʊt ˈmɛθ.əd ˈɛd.ɪ.tə/US /ˈɪnˌpʊt ˈmɛθ.əd ˈɛd.ɪ.təɹ/ noun1 •A program that facilitates the input of foreign scripts or exotic symbols on a computer or similar device. formsinput method editors