tidal wave
noun [ C ] uk/ˈtaɪ.dəl ˌweɪv/ us/ˈtaɪ.dəl ˌweɪv/
(SEA)
海啸
an extremely large wave caused by movement of the earth under the sea, often caused by an earthquake (= a shaking of the earth)
Compare: tsunami
(LARGE NUMBER)
高潮，浪潮
a sudden large number of things
a tidal wave of complaints 抗议的浪潮