lessen (lessens 3rd person present) (lessening present participle) (lessened past tense & past participle) If something lessens or you lessen it, it becomes smaller in size, amount, degree, or importance.
A look back at Hurricane Camille. Hurricane Camille, the USA's second strongest 20th century hurricane, hit the Gulf Coast in 1969. Camille became a hurricane on Aug. 15, 1969 south of Cuba and began quickly growing that night as it moved into the Gulf of Mexico. look back at Hurricane Camille. Hurricane Camille, the USA's second strongest 20th century hurricane, hit the Gulf Coast in 1969. Camille became a hurricane on Aug. 15, 1969 south of Cuba and began quickly growing that night as it moved into the Gulf of Mexico.
The costliest hurricane ever recorded in the Atlantic was Hurricane Katrina, which struck the coastlines of Mississippi and Louisiana after brushing the tip of Florida, in August 2005, causing $108 billion (2005 USD) in property damage.