eye-witness Copy link • eye-witness: arbĭter, tri, m.: places where there are no e.s (of what you do), loca ab arbitris libera, Cic. Att. 15, 16: Pl. (Oculatus testis in Pl. Truc. 2, 6, 8, opp. to auritus is said faceté.) Phr.: all the circumstances of which I was an e., omnia quibus interfueram, Plin. Ep. 6, 16, 22.