Definition of tsunami noun from the Oxford Advanced Learner's Dictionary

 

tsunami

 noun
noun
BrE BrE//tsuːˈnɑːmi//
 
; NAmE NAmE//tsuːˈnɑːmi//
 
(from Japanese) Coastlines and the sea, Natural disasters
 
jump to other results
an extremely large wave in the sea caused, for example, by an earthquake synonym tidal wave A tsunami early warning system was set up in Hawaii. The tsunami caused immeasurable damage. Wordfinderavalanche, cyclone, disaster, earthquake, eruption, flood, hurricane, landslide, tornado, tsunami See related entries: Coastlines and the sea, Natural disasters Word Origin late 19th cent.: from Japanese, from tsu ‘harbour’ + nami ‘wave’.
See the Oxford Advanced American Dictionary entry: tsunami