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Hiroshima

American  
[heer-oh-shee-muh, hi-roh-shuh-muh, hee-raw-shee-mah] / ˌhɪər oʊˈʃi mə, hɪˈroʊ ʃə mə, ˈhi rɔˈʃi mɑ /

noun

  1. a seaport on SW Honshu, in SW Japan: first military use of atomic bomb August 6, 1945.


Hiroshima British  
/ hɪˈrɒʃɪmə, ˌhɪrɒˈʃiːmə /

noun

  1. a port in SW Japan, on SW Honshu on the delta of the Ota River: largely destroyed on August 6, 1945, by the first atomic bomb to be used in warfare, dropped by the US, which killed over 75 000 of its inhabitants. Pop: 1 113 786 (2002 est)

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Hiroshima 1 Cultural  
  1. A Japanese city on which the United States dropped the first atomic bomb (see also atomic bomb) used in warfare, on August 6, 1945. After the devastation of the bombing, Hiroshima was largely rebuilt.


Hiroshima 2 Cultural  
  1. City on the southwest coast of Honshu Island, Japan; a commercial and industrial center.


Discover More

On August 6, 1945, Hiroshima was almost completely destroyed by the first atomic bomb (see also atomic bomb) ever dropped on a populated area. Followed by the bombing of Nagasaki, on August 9, this show of Allied strength hastened the surrender of Japan in World War II.

Many survivors of these bombings have suffered from a variety of diseases caused by radiation, such as leukemia.

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.

During the meal, she asked Honda to rehearse with her and her son, Sean Lennon, before they performed at a concert memorializing the 50th anniversary of the atomic bombing of Hiroshima.

From Los Angeles Times • May 14, 2026

A team from Kyoto University and Hiroshima University set out to solve that missing piece.

From Science Daily • May 13, 2026

The United States is the only country to have used nuclear weapons in combat, obliterating the Japanese cities of Hiroshima and Nagasaki at the end of World War II, killing some 214,000 people.

From Barron's • Apr. 23, 2026

"They dropped a bomb at Hiroshima and it was all called off," he said on the 75th anniversary of VJ day in 2020.

From BBC • Feb. 9, 2026

Since Hiroshima, there had been more than 190 atomic and thermonuclear tests in the atmosphere, underground, and at sea.

From "Big Science" by Michael Hiltzik

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