Rosetta
Americannoun
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a town in N Egypt, at a mouth of the Nile.
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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
Funded by the Buckinghamshire-based ME Association and carried out at Imperial College London, the Rosetta Stone study hopes to look for biomarkers and "decode the immunological profile" of both conditions.
From BBC • Feb. 1, 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
Zola scoots onto the bed and cuddles Rosetta.
From "The Unfinished Angel" by Sharon Creech
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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.