A device used for shredding documents, often as a security measure to prevent unapproved persons from reading them. (noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "shredder" in a sentence
"To treat government spending as if it involves feeding money into a paper shredder is to ignore that principle: Money Is Neither Created Nor Destroyed."
"The data shredder is free, so you get what you pay for, and since it's free, then it's probably as good as it's going to get."
"The shredder is a hell of a lot more cost-effective."