Rosetta:g

geographical name
Ro*set*ta \ rō-ˈze-tə \
  • river 146 miles (235 kilometers) long in northern Egypt forming the western branch of the Nile River in its delta
  • city in northern Egypt on the Rosetta River near where the Rosetta Stone was discovered in 1799 population 69,000

Rosetta stone

noun
Ro*set*ta stone \ rō-ˈze-tə- \
1822{ds||1||}
  • a black basalt stone found in 1799 that bears an inscription in hieroglyphics, demotic characters, and Greek and is celebrated for having given the first clue to the decipherment of Egyptian hieroglyphics
  • one that gives a clue to understanding
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