Is a olive nut the same as a tree nut?

No, an olive nut is not the same as a tree nut. Olives are fruits that grow on olive trees, and their pits are often referred to as "olive stones" rather than nuts. Tree nuts, such as almonds, walnuts, and cashews, are seeds that grow on various types of trees. While olives and tree nuts can both be part of a healthy diet, they belong to different botanical categories.