Hearn play biographical name \ˈhərn\ Definition of Hearn Laf*ca*dio play \laf-ˈkä-dē-ˌō\ 1850–1904 Jp. Yakumo Koizumi Am. (Greek-born) writer in Japan Writing? Check your grammar now! Seen and Heard What made you want to look up Hearn? Please tell us where you read or heard it (including the quote, if possible).