1: ἀστραπή
(Strong's #796 — Noun Feminine — astrape — as-trap-ay' )

denotes (a) "lightning" (akin to LIGHT, B, No. 7), Matthew 24:27; 28:3; Luke 10:18; 17:24; in the plural, Revelation 4:5; 8:5; 11:19; 16:18; (b) "bright shining," or "shining brightness," Luke 11:36 . See SHINING.