(noun) The usually green and flat organ that represents the most prominent feature of most vegetative plants.
"And all the lives we ever lived and all the lives to be are full of trees and changing leaves."
"A man without principle is like a tree without leaves."
"Each has his past shut in him like the leaves of a book known to him by heart and his friends can only read the title."
"Autumn is a second spring when every leaf is a flower."
"What a psalm the storm was singing, and how fresh the smell of the washed earth and leaves, and how sweet the still small voices of the storm!"