The term 'OAK OR PINE' can be summarized as two types of trees and their corresponding WOOD. Oak and pine are both deciduous trees, meaning they lose their leaves in the fall and grow new ones in the spring. Oak is a hardwood tree, while pine is a softwood tree. The WOOD from oak trees is strong and durable, while pine WOOD is lightweight and more affordable. Both woods are popular for furniture making, flooring, and other woodworking projects.