What is the meaning of Islam?

noun

• The civilization of Muslims collectively which is governed by the Muslim religion.
  • usage: "Islam is predominant in northern Africa, the Middle East, Pakistan, and Indonesia"
  • synonyms: Muslimism
• The monotheistic religious system of Muslims founded in Arabia in the 7th century and based on the teachings of Muhammad as laid down in the Koran.
  • usage: "Islam is a complete way of life, not a Sunday religion"; "the term Muhammadanism is offensive to Muslims who believe that Allah, not Muhammad, founded their religion"
  • synonyms: Islamism, Mohammedanism, Muhammadanism, Muslimism