Lexical Definition

‎ἀστραπή‎ astrapḗ (as-trap-ay') lightning G:N-F
from ‎ἀστράπτω‎

lightning, bright shining.

Usage: 10 forms in 25 verses
Form Translated As     In Verse(s)
ἀστραπῇ shining Luke.11.36
ἀστραπὴν lightning Luke.10.18
ἀστραπὴ lightning Matt.24.27Matt.28.3Luke.17.24
ἀστραπαὶ flashes of lightning Rev.4.5Rev.8.5Rev.11.19Rev.16.18
αστραπαί His lightnings LXX.Ps.97.4
lightnings LXX.Nah.2.4
your lightnings LXX.Ps.77.18
αστραπήσ of lightning LXX.Dan.10.6LXX.Hab.3.11
αστραπήν lightning LXX.Deut.32.41LXX.2Sam.22.15LXX.Ps.144.6
αστραπή lightning LXX.Ezek.1.13LXX.Ezek.21.15LXX.Zech.9.14
αστραπάσ lightnings LXX.Ps.18.14LXX.Ps.135.7LXX.Jer.10.13LXX.Jer.51.16
άστραπαι lightnings LXX.Exod.19.16

Abbott-Smith

ἀστραπή, -ῆς, ἡ, [in LXX for בָּרָק;]
lightning: Mt 24:27 28:3, Lk 10:18 17:24; pl., Re 4:5 8:5 11:19 16:18; of a lamp, shining brightness, Lk 11:36.†

Abbott-Smith References

Book Refs
Matthew 24:27 · 28:3
Luke 10:18 · 11:36 · 17:24
Revelation 4:5 · 8:5 · 11:19 · 16:18

Liddell-Scott-Jones

ἀστραπή-, ,

={ἀστεροπή},{στεροπή},fiash of lightning, lightning, βροντὴ καὶ .[Refs 5th c.BC+]; personified, as subject of painting, [Refs 1st c.AD+]: frequently in plural, lightnings, τὰς . τε καὶ κεραυνίους βολάς[Refs 5th c.BC+]

__2 light of a lamp, [NT+4th c.BC+]
__3 metaphorically, ἀστραπήν τιν᾽ ὀμμάτων flashing of the eyes, [Refs 5th c.BC+]; ἐκτυφλοῦν τιν᾽ ἀστραπὴ [εἰμί] [Refs 4th c.BC+]

LSJ Scripture Refs: Luke.11.36