IPA: /ˈʃrɛdər/
KK: /ˈʃrɛdər/
A machine that cuts paper or other materials into small pieces, usually to keep information safe.
I used the shredder to destroy old documents that contained personal information.
Shredder → It is formed from "shred" (from Old English *scræd*, meaning a piece or fragment) and "-er" (meaning a person or thing that performs an action). A shredder is a device or person that creates shreds or fragments of something.
Think of a 'shred' as a small piece or fragment, and the '-er' indicates someone or something that does the action — so a shredder is something that makes things into small pieces.