Wahy refers to Revelation which consists of communicating God's Messages to a Prophet or Messenger of God. The highest form of revelation is the Qur'an of which even the words are from God.
Revelation; Allah revealed the holy Quran to Muhammad Rasulullah (SAWA) through ‘malak ul-wahy' Jibraeel (AS).
Wahy is the Arabic word for revelation. In Islamic context, it refers to the revelations and inspirations of God (Arabic: Allah) to his prophets, for all humankind. In Islam, the Qur'an is considered a Wahy given to Muhammad.