Rosetta
Americannoun
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a town in N Egypt, at a mouth of the Nile.
-
a female given name.
noun
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
"It's a stepping stone to Mars, where we might have the most likelihood of finding evidence of past life, but it's also a Rosetta Stone for how other solar systems form."
From Barron's • Apr. 1, 2026
For now, I continue to study the photos of my polyps like they’re the Rosetta Stone and find solace that I asked for the earlier colonoscopy instead of the later one.
From Los Angeles Times • Feb. 3, 2026
Much like the Rosetta Stone helped scientists interpret ancient hieroglyphics, V1298 Tau provides a key reference for understanding how the galaxy's most common planets take shape.
From Science Daily • Jan. 31, 2026
These include the Rosetta Stone, the key to deciphering hieroglyphics, which is on display at the British Museum in London.
From BBC • Nov. 2, 2025
One interpreter glanced at the Rosetta stone, whose hieroglyphic inscription was then still undeciphered, and instantly announced its meaning.
From "Cosmos" by Carl Sagan
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
