Rosetta Stone
Speech parts
1. Rosetta Stone - Noun
2. Rosetta Stone - Proper noun
Meaning
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: WordNetSynonyms
Examples
It could be all unwittingly that I wrote in Darkness Visible what amounted to a Rosetta stone for my other work.
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.
I'm learning Spanish - I got Rosetta Stone for Christmas.
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).
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.
Ancient Languages In many cases, a multilingual artifact is necessary to facilitate decipherment, the Rosetta Stone being the classic example.