A twig is a small, thin branch that grows out of a larger branch on a tree or bush. It is an important part of the tree as it holds the trees leaves and flowers in the spring and summer, actively drops the leaves in the fall, and protects next years growth from cold temperatures and drying winds during the winter. The pattern of twig growth allows a tree to bend and weave its way through the air in search of sunlight. Twigs can be used for various purposes such as creating a miniature holiday vignette, building a fire, or as a material for crafts. In British informal language, "to twig" means to understand or find out something.