ground zero

noun

1
: the point directly above, below, or at which a nuclear explosion occurs
2
: the center or origin of rapid, intense, or violent activity or change
broadly : center sense 2a
the party town that served as ground zero for those corporate … bashes Rich Eisen
3
: the very beginning : square one

Examples of ground zero in a Sentence

ground zero in the battle over immigration laws a city that was once ground zero for the insurance industry
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
On February 2, 2017, UC Berkeley became ground zero when provocateur Milo Yiannopoulos’ speech was protested- these violent protests were only the tip of the iceberg in a rapid shift in norms on college campuses. Manu Meel, Forbes, 21 Jan. 2025 Identifying ground zero for the advent of Dengue Fever can be tricky, but careful research has identified Aquarius Records in the heart of San Francisco’s Mission District as the primary origin of the infectiously melodic band. Andrew Gilbert, The Mercury News, 27 Dec. 2024 School boards have become ground zero where far-right extremists use a decades-old playbook against the LGBTQ+ community. Gretchen Smail, Them, 31 Oct. 2024 The church, about 500 yards from ground zero and near the Nagasaki Peace Park, is widely seen as a symbol of hope and peace, as its bell tower and some statues survived the nuclear bombing. Yuri Kageyama, Los Angeles Times, 5 Jan. 2025 See all Example Sentences for ground zero 

Word History

First Known Use

1946, in the meaning defined at sense 1

Time Traveler
The first known use of ground zero was in 1946

Dictionary Entries Near ground zero

Cite this Entry

“Ground zero.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ground%20zero. Accessed 27 Jan. 2025.

Kids Definition

ground zero

noun
1
: the site of a nuclear explosion
2
: the center of rapid, intense, or violent activity or change
3
: the very beginning : square one

More from Merriam-Webster on ground zero

Last Updated: - Updated example sentences
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