The definition of the Qur’aan is – that which is written in the Masaahif (books), narrated through Tawaatur (unlimited narrators).
The definition fits only the Arabic version of the Qur’aan and not the English version as that will be a translation of the Qur’aan and not the Qur’aan itself. A person who memorises the Qur’aan in English has memorised the translation and not the actual Qur’aan.
and Allah Ta’ala Knows Best
Mufti Ebrahim Desai