Definition of Darius I in English:

Darius I

proper noun

  • (c.550–486 BC), king of Persia 521–486 BC; known as Darius the Great. After a revolt by the Greek cities in Ionia (499–494 BC) he invaded Greece but was defeated at Marathon (490 BC)

Pronunciation

Darius I

/ˈde(ə)rēəs/