Any of several species of the related Mexican buckeye (genus Ungnadia).
Any of several species of trees of the genus Aesculus.
The seed or fruit of these plants.
A native or resident of the American state of Ohio.
The Junonia coenia butterfly.
A confection made from peanut butter fudge partially dipped in chocolate to leave a circle of peanut butter visible, supposed to resemble the nut of the Ohio buckeye tree.
Aesculus hippocastanum, the horse chestnut.