1. a very large ocean wave caused by an underwater earthquake or volcanic eruption
2. a sudden powerful surge or overwhelming amount of something
Usage: figurative

Examples

• The tsunami destroyed entire coastal villages in minutes.
• Scientists can now predict when a tsunami might hit the shore.
• The 2004 Indian Ocean tsunami was one of the deadliest natural disasters in history.
• Emergency sirens warned residents to evacuate before the tsunami arrived.
• The company faced a tsunami of complaints after the product recall.
• Social media created a tsunami of support for the charity campaign.
• The new policy triggered a tsunami of changes throughout the organization.