Tsunami Definition
tso͝o-nämē
tsunamis
noun
A huge sea wave caused by a great disturbance under an ocean, as a strong earthquake or volcanic eruption.
Webster's New World
Other Word Forms of Tsunami
Noun
Singular:
tsunami
Plural:
tsunamisOrigin of Tsunami
Japanese tsu harbor nami wave (so called because tsunamis generally pass unnoticed on the open sea, causing a slight swell, but rise to cause damage in the shallow waters of harbors)
From American Heritage Dictionary of the English Language, 5th Edition
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From Japanese 津波 / 津浪 (つなみ (tsunami, “seismic sea wave", literally “harbour wave")).
From Wiktionary
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