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 hurricane produced flooding and caused one death in the northwestern Bahamas. In North Carolina and Virginia, Irene produced heavy rainfall of over 10 inches (255 mm), adding more flooding after previous Hurricanes Dennis and Floyd.