Lattice/ˈlætɪs/ Definition 1 of 4Pro Tip 1/3Physical Structures Often found in gardens, a lattice can be a decorative and functional element. She hung fairy lights along the garden lattice for the party. Pro Tip 2/3Supporting Plants Lattices are commonly used to support plants as they grow upward. Cucumber vines spread quickly over the plant lattice. Pro Tip 3/3Architectural Element Lattices are often used as a creative architectural feature for shade or privacy. A lattice covering the patio provided a nice shaded area.