eye-witness

from 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]

from Bouvier's Law Dictionary, Revised 6th Ed (1856)

EYE-WITNESS. One who saw the act or fact to which he testifies. When an eye-
witness testifies, and is a man of intelligence and integrity, much reliance 
must be placed on his testimony, for he has the means of making known the 
truth.

from Moby Thesaurus II by Grady Ward, 1.0

88 Moby Thesaurus words for "eyewitness":
      TV-viewer, absolute, adducible, admissible, attestant, attestative,
      attestator, attester, attestive, authentic, based on, beholder,
      bird-watcher, bystander, certain, circumstantial, cojuror,
      compurgator, conclusive, convincing, cumulative, damning, decisive,
      deponent, determinative, documentary, documented, drugstore cowboy,
      earwitness, evidential, evidentiary, ex parte, eye-witness,
      factual, final, firsthand, founded on, gaper, gazer, gazer-on,
      girl-watcher, goggler, grounded on, hearsay, implicit,
      incontrovertible, indicative, indisputable, informant, informer,
      irrefutable, irresistible, kibitzer, looker, looker-on, material,
      nuncupative, observer, ogler, onlooker, overwhelming, passerby,
      perceiver, percipient, presumptive, probative, reliable, seer,
      sidewalk superintendent, significant, spectator, spectatress,
      spectatrix, suggestive, sure, swearer, symptomatic, televiewer,
      television-viewer, telling, testifier, valid, video-gazer, viewer,
      voucher, watcher, weighty, witness