From horao; the act of gazing, i.e. (externally) an aspect or (internally) an inspired appearance -- sight, vision.
see GREEK horao
1. the act of seeing: ὀμμάτων χρῆσις εἰς ὅρασιν, Wis. 15:15; the sense of sight, Aristotle, de anima 3, 2; Diodorus 1, 59; Plutarch, mor., p. 440f; plural the eyes, ἐκκόπτειν τάς ὁράσεις, Diodorus 2, 6.
2. appearance, visible form: Revelation 4:3 (Numbers 24:4; Ezekiel 1:5, 26, 28; Sir. 41:20, etc.).
3. a vision, i. e. an appearance divinely granted in an ecstasy: Revelation 9:17; ὁράσεις ὄψονται, Acts 2:17 from Joel 2:28. (The Sept. chiefly for מַרְאֶה and חָזון.)