Lexical Definition

‎ἐπιφανής‎ epiphanḗs (ep-if-an-ace') glorious ^G:A
from ‎ἐπιφαίνω‎

notable.

• conspicuous, i.e. (figuratively) memorable

Abbott-Smith

ἐπιφανής, -ές (< ἐπιφαίνω), [in LXX (v. Thayer, s.v.) for יָרֵא, etc., Jg 13:6, Jl 2:11, 31 al.; II Mac 6:23, III Mac 5:35, al. ;]
renowned, illustrious, notable: Ac 2:20 (LXX) (cf. MM, Exp., xiv).†

Abbott-Smith References

Liddell-Scott-Jones

ἐπιφανής-ής, ές,

coming to light, coming suddenly into view, appearing, of gods, [Refs 5th c.BC+]: hence, present to aid, θεοὶ -έστατοι [Refs 1st c.BC+]

__2 of places and things, in full view, πόλις ἐ. ἔξωθεν, of a place commanded by another, [Refs 5th c.BC+]; τινι to one,[Refs]; ἔχειν ἐπιφανήςεῖς θηλάς visible, [Refs 4th c.BC+]; φλέβες prominent, [Refs 2nd c.AD+]
__3 manifest, evident, ὄνειδος [Refs 3rd c.AD+]; ἐκ τῶν ἐπιφανήςεστάτων σημείων [Refs 5th c.BC+]
__II of men, conspicuous, notable, distinguished by rank, [Refs 5th c.BC+]; notable, either for good or ill, [Refs 5th c.BC+]; ἀνδρείᾳ for courage, [Refs 5th c.BC+]; famous, renowned, [Refs 5th c.BC+]; ἀνδρῶν ἐ. πᾶσα γῆ τάφος [Refs 5th c.BC+]; of things, places, etc., χώρα [Refs 2nd c.BC+]; -εστέρα τιμή [Refs 1st c.BC+]; -έσταται τιμαί [Refs]
__II.2 of things, remarkable, οὗτοί σφεων οἱ -έστατοι νόμοι εἰσί [Refs 5th c.BC+]; -εστάτη μάχη Anon.Hist.[Refs]
__II.3 as a title of divinities, τῶν -εστάτων θεῶν [Refs]; also of Eastern Kings, e.g.Ptolemy V, [Refs 2nd c.BC+]; Antiochus of Syria, [Refs 2nd c.BC+]
__III adverb -νῶς openly, conspicuously, [Refs 5th c.BC+]
__III.2 with distinction, λαμπρῶς καὶ ἐ. [Refs 1st c.AD+]: comparative -έστερον, ζην with greater distinction, [Refs 4th c.BC+]