Do you know a Japanese word of Kaizen? Kaizen has supported Japanese Manufacturing industries. At present, Kaizen is one of internationally understood Japanese words. That is; as for this word, there is no need of translation into any other language than Japanese.

Let us take some examples of Japanese words of the same category. One well-known example is Tsunami. This word is not necessary to be translated, either.

No need? True? Why? The answer to this question is as follows. Japan has suffered from devastating disasters of very big sea-water waves caused by big earth quakes for the past many centuries. We have a lot of records of such disasters in our long history.