1. Rosetta Stone - Noun
2. Rosetta Stone - Proper noun
a part of an inscribed granite stela that was originally about six feet tall and was set up in 196 BC; the inscriptions in hieroglyphics and Demotic and Greek gave the first clues to the decipherment of Egyptian hieroglyphics
Source: WordNetIt could be all unwittingly that I wrote in Darkness Visible what amounted to a Rosetta stone for my other work. William Styron
He's this amazing ambassador for all superheroes. What we've made as a film not only examines that but is also an amazing adventure story. It's been an honor to work on. As a comic book fan, Superman is like the Rosetta Stone of all superheroes. Zack Snyder
I'm learning Spanish - I got Rosetta Stone for Christmas. Karlie Kloss
1768–1826 The early 19th-century editions of Encyclopædia Britannica included influential, original research such as Thomas Young's article on Egypt, which included the translation of the hieroglyphs on the Rosetta Stone (pictured). Source: Internet
A replica of the Rosetta Stone is now available in the King's Library of the British Museum, without a case and free to touch, as it would have appeared to early 19th-century visitors. Source: Internet
Ancient Languages In many cases, a multilingual artifact is necessary to facilitate decipherment, the Rosetta Stone being the classic example. Source: Internet