Putty is a soft, malleable substance often used in construction and repair work. It can be made from various materials, including clay, resin, or silicone, and is typically used to fill gaps, seal joints, or adhere surfaces together. There are different types of putty, such as window putty, which is used to hold glass panes in frames, and plumber's putty, which helps create watertight seals in plumbing fixtures. Putty is valued for its versatility and ease of use, making it a common choice for both professionals and DIY enthusiasts.