Tsunamis are one of the most destructive natural phenomena, which can cause massive devastation in coastal areas. Some synonyms for the word "tsunamis" include tidal waves, seismic waves, and oceanic waves. Tidal waves are massive waves generated by the gravitational pull of the moon and the sun, while seismic waves are caused by earthquakes and volcanic eruptions. Oceanic waves refer to the large waves generated by the motion of the ocean. Tsunamis or tidal waves are extremely dangerous, and people living in coastal areas must be aware of the dangers they pose and take necessary precautions to protect themselves and their property from their destructive effects.