| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | ground zero | Japan | Ground zero in Japan is historically linked to the atomic bomb explosions in Hiroshima and Nagasaki during World War II. | 5 |
| 2 | ground zero | United States | Ground zero in the United States refers to the site of a major disaster, specifically the September 11 attacks in New York City. | 4 |