I. ˈ ̷ ̷| ̷ ̷ ̷ ̷ noun
Usage: often attributive
Etymology: eye (I) + witness
1. : one that sees or has seen an occurrence or an object with his own eyes and so is able to give a firsthand report on it : one that gives a report on or testifies to what he has actually seen
an eyewitness of the crime
2. obsolete : a report by an eyewitness
II. transitive verb
: to see with one's own eyes
correspondents who eyewitnessed the recent riots — Time