1. excessive or abnormal growth of something, especially plants or tissue
2. dense vegetation that has grown over an area

Examples

• The abandoned lot was covered with an overgrowth of weeds and vines.
• The doctor removed the overgrowth of tissue from the patient’s throat.
• We had to cut through the overgrowth to reach the old trail.
• The garden showed signs of overgrowth after months of neglect.
• An overgrowth of algae turned the pond green.
• The overgrowth made it impossible to see the original fence line.