ˌoʊvɚlˈeɪɪŋ ɪz ɐ pɹˈoʊɡɹæmɪŋ mˈɛθəd ðæt ɐlˈaʊz pɹˈoʊɡɹæmz təbi lˈɑːɹdʒɚ ðɐn ðə kəmpjˈuːɾɚz mˈeɪn mˈɛmɚɹi.
Overlaying is a programming method that allows programs to be larger than the computer's main memory.