Shredder/ˈʃredər/ Definition 1 of 4Pro Tip 1/3Confidentiality Used to destroy sensitive documents to protect private information. The spy used a shredder to destroy the secret files. Pro Tip 2/3Variety of Materials Shredders can cut more than paper; some handle plastic, metal, or fabric. We need an industrial shredder to dispose of the defective plastic parts. Pro Tip 3/3Environmental Context Often mentioned in recycling or waste management discussions. A shredder is essential for processing recyclables in the new facility.