tsunami

noun
  1. A long high sea wave caused by an underwater earthquake, volcanic eruption, or landslide. noun
    The coastal town was devastated by a massive tsunami that struck without warning.
    Scientists are working on early warning systems to predict when a tsunami might occur.
  2. A sudden and overwhelming influx or occurrence of something, often used metaphorically. noun
    The company faced a tsunami of complaints after the faulty product was released.
    There was a tsunami of emotions as the team won the championship after decades.