Little Boy

American  

noun

1. the code name for the uranium-fueled atomic bomb dropped by the U.S. on Hiroshima in 1945.

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Compare meaning

How does little-boy compare to similar and commonly confused words? Explore the most common comparisons:

• Fat Man vs. Little Boy

Example Sentences

And he has featured alongside another Liverpudlian, Stephen Graham, in Time, Little Boy Blue, and the recent historical drama A Thousand Blows.

From BBC • Apr. 6, 2025

Fat Man and Little Boy are holding steady. apnews.com/article/dei-...

From Salon • Mar. 10, 2025

The bomb dropped on Hiroshima on Aug. 6, nicknamed "Little Boy", killed thousands instantly and about 140,000 by the end of the year.

From Reuters • Aug. 6, 2023

I asked him if the bombs that our enemies had were as big as Little Boy and Fat Man, the bombs that had destroyed Hiroshima and Nagasaki.

From Seattle Times • Oct. 31, 2022

That afternoon, Little Boy was loaded into Tibbets’s plane, which he had named Enola Gay, for his mother.

From "Bomb" by Steve Sheinkin