NOUN (1)

1. a spectator who can describe what happened;


VERB (1)

1. be present at an event and see it with one's own eyes;

The Collaborative International Dictionary of English v.0.48:

Eyewitness \Eye"wit`ness\, n.
   One who sees a thing done; one who has ocular view of
   anything.
   [1913 Webster]

         We . . . were eyewitnesses of his majesty. --2 Pet. i.
                                                  16.
   [1913 Webster]

WordNet (r) 3.0 (2006):

eyewitness
    n 1: a spectator who can describe what happened
    v 1: be present at an event and see it with one's own eyes