Old English Eyewitness EYE-wit-ness An eyewitness is a person who witnesses an event or crime firsthand. Their testimony can be a form of evidence in a legal case. The eyewitness identified the defendant as the person who robbed the bank. In State v. Jones (2022), the eyewitness testimony was a key piece of evidence in convicting the defendant. ← Back to BrowseNext Term →