Jisho

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Noun
1. giant wave; large wave
Wikipedia definition
2. Rogue waveRogue waves (also known as freak waves, monster waves, killer waves, extreme waves, and abnormal waves) are relatively large and spontaneous ocean surface waves that occur far out at sea, and are a threat even to large ships and ocean liners. In oceanography, they are more precisely defined as waves whose height is more than twice the significant wave height (SWH), which is itself defined as the mean of the largest third of waves in a wave record.
Read “Rogue wave” on English Wikipedia
Read “巨大波” on Japanese Wikipedia
Read “Rogue wave” on DBpedia

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