tsunami
noun
tsu·na·mi
(t)su̇-ˈnä-mē 
plural tsunamis also tsunami
: a great sea wave produced especially by submarine earth movement or volcanic eruption : tidal wave
Examples of tsunami in a Sentence
Recent Examples on the Web
The toll is the deadliest in a natural disaster in Indonesia since a massive 2018 earthquake and subsequent tsunami killed more than 2,000 people in Sulawesi.
—
CBS News, 1 Dec. 2025
There were no immediate reports of damage or injuries and no tsunami warnings have been issued.
—Hollie Silverman, MSNBC Newsweek, 29 Nov. 2025
The National Tsunami Warning Center quickly determined that the event did not pose any threat of a tsunami.
—Meghan Bartels, Scientific American, 26 Nov. 2025
Patients are the nexus between responsible health care and a dangerous technologic tsunami.
—Cory Franklin, Twin Cities, 23 Nov. 2025
See All Example Sentences for tsunami
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CBS News, 1 Dec. 2025
There were no immediate reports of damage or injuries and no tsunami warnings have been issued.
—Hollie Silverman, MSNBC Newsweek, 29 Nov. 2025
The National Tsunami Warning Center quickly determined that the event did not pose any threat of a tsunami.
—Meghan Bartels, Scientific American, 26 Nov. 2025
Patients are the nexus between responsible health care and a dangerous technologic tsunami.
—Cory Franklin, Twin Cities, 23 Nov. 2025
See All Example Sentences for tsunami
Cite this Entry
“Tsunami.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/tsunami. Accessed 6 Dec. 2025.
Copy CitationKids Definition
tsunami
noun
tsu·na·mi
(t)su̇-ˈnäm-ē
: a great sea wave produced especially by an earthquake or volcanic eruption under the sea : tidal wave
Etymology
Japanese, from tsu "harbor" + nami "wave"
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