noun
- a person who gives information to authorities about illegal activities or wrongdoing by others
Examples
- The police relied on an informer to gather evidence about the drug operation.
- He was branded as an informer after revealing the gang’s plans to authorities.
- The informer’s identity was kept secret for their protection.
- Many criminals distrust anyone they suspect might be an informer.
- The informer provided crucial testimony that led to several arrests.
- She became an informer after witnessing the crime firsthand.