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

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

From Salon • Mar. 10, 2025

Elsewhere is a display meant to honor the Japanese people killed and injured by Fat Man and Little Boy, a smaller bomb dropped on Hiroshima three days earlier.

From New York Times • Apr. 26, 2024

The Fat Man bomb was dropped on Nagasaki on Aug. 9, 1945, three days after Hiroshima was devastated by Little Boy.

From Seattle Times • Sep. 22, 2023

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

The Enola Gay dropped its payload, the uranium bomb christened Little Boy.

From "Big Science" by Michael Hiltzik