This is the 2656th most frequent Japanese word.
柿
"柿" means "persimmon."
柿 refers to the persimmon fruit or tree in this usage.
庭で大きな柿の木が育っています。
A large persimmon tree is growing in the garden.
柿 is used to denote the persimmons as the harvested fruit here.
今年は柿の収穫が多いです。
This year, there is a large harvest of persimmons.
柿 represents the edible persimmon fruit in this context.