plural tsunamis also tsunami
Synonyms of tsunaminext
: 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
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Authorities did not report a destructive tsunami in the latest damage assessment. — Antonio María Delgado, Miami Herald, 10 Oct. 2026 The threat of tsunami has likely largely receded, says USGS seismologist Susan Hough, as the quake occurred on land and happened at a relatively shallow depth. — Adam Kovac, Scientific American, 9 Oct. 2026 Despite the potential danger to coastal communities near the earthquake, officials said a Pacific-wide tsunami was not expected. — Brittany Miller, FOXNews.com, 9 Oct. 2026 If polls overestimated Republicans by that amount, Democrats might experience a tsunami. — Scott Clement, Washington Post, 8 Oct. 2026 See All Example Sentences for tsunami

Word History

Etymology

Japanese, from tsu harbor + nami wave

First Known Use

1896, in the meaning defined above

Time Traveler
The first known use of tsunami was in 1896

Browse Nearby Words

Cite this Entry

“Tsunami.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/tsunami. Accessed 11 Oct. 2026.

Kids Definition

: 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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