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Can anyone remember what tsunamis/tidal waves(and yes we all know that is tech. incorrect) are called around the world? I'm embarassed that I cannot remember!
I'm not sure what you are trying to ask here. However, the word "tsunami", though it has a Japanese origin, is an English word. In fact, it first made an appearance in the Oxford English Dictionary in 1897. It is used when describing this phenomenon in English all around the world. So a tsunami is called .... a tsunami around the world.

If, however, you are interested how tsunami is refered to in other languages, I can start the ball rolling in Chinese. The chinese characters literally mean "roar of the sea", and is pronounced in:

Mandarin - Hai Xiao (pron. hai siau)
Cantonese - Hoi Siew

Other chinese dialects will pronounce the characters differently. You probably won't be interested in how the characters look like.

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