Definition of Isis in English:

Isis

proper noun

Egyptian Mythology
  • A goddess of fertility, wife of Osiris and mother of Horus. Her worship spread to western Asia, Greece, and Rome, where she was identified with various local goddesses.

Pronunciation:

Isis

/ˈīsis/

Definition of ISIS in English:

ISIS

(also Isis)

proper noun

  • A militant Islamic fundamentalist group active particularly in Syria and Iraq.

    Also called ISIL, Islamic State

Origin

Early 21st century: acronym from Islamic State in Iraq and Syria or Islamic State in Iraq and al-Sham ( ‘Syria’ or ‘the Levant’).

Pronunciation:

ISIS

/ˈīsis/