a large, often destructive, sea wave produced by a submarine earthquake, subsidence, or volcanic eruption. Sometimes incorrectly called a tidal wave
WordReference Random House Learner's Dictionary of American English © 2025
tsu•na•mi /tsʊˈnɑmi/USA pronunciation
n. [countable], pl. -mis.
WordReference Random House Unabridged Dictionary of American English © 2025- Oceanographyan unusually large sea wave produced by a seaquake or volcanic eruption under water.
tsu•na•mi
(tsŏŏ nä′mē),USA pronunciation n.
tsu•na•mic
(tsŏŏ nä′mik, -nam′ik),USA pronunciation adj.
- Oceanographyan unusually large sea wave produced by a seaquake or undersea volcanic eruption. Also called seismic sea wave.
- Japanese, equivalent. to tsu harbor (earlier tu) + nami wave
- 1905–10;
Collins Concise English Dictionary © HarperCollins Publishers::
'tsunami' also found in these entries (note: many are not synonyms or translations):
Aceh
- Andaman and Nicobar Islands
- Banda Aceh
- Galle
- India
- Indian Ocean
- Indonesia
- Maldives
- Phuket
- Sendai
- Sumatra
- Thailand
- seismic sea wave
- tidal wave