Lexical Definition

‎αἰών‎ aiṓn (ahee-ohn') an age: age ^G:N-M
from the same as ‎ἀεί‎

age, course, eternal, (for) ever(-more), (n-)ever, (beginning of the , while the) world (began, without end).

• properly, an age
• by extension, perpetuity (also past)
• by implication, the world
• specially (Jewish) a Messianic period (present or future)

Abbott-Smith

αἰών, -ῶνος, ὁ, [in LXX chiefly for עַד עוֹלָם;]
1. in cl., like Lat. aevum (LS, MM, VGT, s.v.), a space of time, as, a lifetime, generation, period of history, an indefinitely long period; in NT of an indefinitely long period, an age, eternity, usually c. prep. (MM, VGT);
(a) of the past: ἀπ’ αἰ. (cf. Heb. מֵעוֹלָם), Lk 1:70;
(b) of the future: εἰς τ. αἰ. (cf. לְעוֹלָם), forever, Mt 21:19; id., c. neg., never, Jo 4:14; more strongly, εἰς τὸν αἰ. τοῦ αἰ., He 1:8(LXX); εἰς τοὺς αἰ., Mt 6:13; εἰς τοὺς αἰ. τῶν αἰ. (cf. Is 45:17, עַד עוֹלָם), Ro 16:27, LT; cf. also Eph 3:21, II Pe 3:18, Ju 25, Re 14:11.
2. οἱ αἰ., the worlds, the universe, "the sum of the periods of time, including all that is manifested in them": He 1:2 11:3 (cf. I Ti 1:17, where τῶν αἰ. are prob. "the ages or world-periods which when summed up make eternity".
3. the present age (Heb. הָעוֹלָם הַזֶּה): ὁ αἰ., Mt 13:22; ὁ αἰ. οὗτος, Mt 12:32; ὁ νῦν αἰ., I Ti 6:17; ὁ ἐνεστὼς αἰ., Ga 1:4; similarly, of the time after Christ's second coming (הָעוֹלָם הַבָּא), ὁ αἰ. ἐκεῖνος, Lk 20:35; ὁ αἰ. μέλλων, Mt 12:32; ὁ αἰ. ὁ ἐρχόμενος, Mk 10:30.
SYN.: κόσμος, the ordered universe, the scheme of material things; οἰκουμένη, the inhabited earth; in contrast with both of which αἰ. is the world under aspects of time (cf. Westc. on He 1:2; Tr., Syn., §lix; Thayer, s.v., αἰ.; Cremer, 74, 620; MM, VGT).

Abbott-Smith References

Liddell-Scott-Jones

αἰών, ῶνος, ὁ,

Ionic dialect and Epic dialect also ἡ, as in [Refs 5th c.BC+ apocopation _accusative_ αἰῶ], like{Ποσειδῶ}, restored by Ahrens (from [Refs 4th c.BC+], compare aevum, see at {αἰεί}):—period of existence (τὸ τέλος τὸ περιέχον τὸν τῆς ἑκάστου ζωῆς χρόνον.. αἰὼν ἑκάστου κέκληται[Refs 4th c.BC+]

__I lifetime, life, ψυχή τε καὶ αἰών[Refs 8th c.BC+]; ἀπ᾽ αἰῶνος νέος ὤλεο [Refs 5th c.BC+]; αἰ. Αἰακιδᾶν, periphrastic for the Aeacidae, [Refs 5th c.BC+]
__I.2 age, generation, αἰ. ἐς τρίτον [Refs]; ὁ μέλλων αἰών posterity, [Refs 5th c.BC+]
__I.3 one's life, destiny, lot, [Refs 5th c.BC+]
__II long space of time, age, αἰὼν γίγνεται 'tis an age, [Refs 4th c.BC+]; especially with Preps., ἀπ᾽ αἰῶνος of old, [NT+8th c.BC+]; δι᾽ αἰῶνος perpetually, [Refs 4th c.BC+]; all one's life long, [Refs 5th c.BC+]; δι᾽ αἰῶνος μακροῦ, ἀπαύστου, [Refs 4th c.BC+]; τὸν δι᾽ αἰ. χρόνον for ever, [Refs]; εἰς ἅπαντα τὸν αἰ. [Refs 5th c.BC+]; εἰς τὸν αἰ. [LXX+1st c.BC+]; ἐξ αἰῶνος καὶ ἕως αἰῶνος[LXX]; ἐπ᾽ αἰ.[LXX]; ἕως αἰῶνος[LXX+4th c.BC+]; eternity, opposed to χρόνος, [Refs 5th c.BC+]
__II.2 space of time clearly defined and marked out, epoch, age, ὁ αἰὼν οὗτος this present world, opposed to ὁ μέλλων, [NT]:—hence in plural, the ages, i.e. eternity, [LXX+1st c.BC+]; εἰς τοὺς αἰ[αἰώνων LXX.4Mac.18.24, NT.Phil.4.20, etc.">LXX+NT]; ἀπὸ τῶν αἰ., πρὸ τῶν αἰ., [NT]
__II.3 Αἰών, ὁ, personified, Αἰὼν Χρόνου παῖς[Refs 5th c.BC+]; as title of various divine beings, [Refs 5th c.AD+]
__II.4 [Refs 4th c.BC+]
__B spinal marrow (perhaps regarded as seat of life), Hymns of Merc 42, 119, [Refs 8th c.BC+]

_{LSJ Scripture Refs: Luke.1.70 ☩ LXX.Gen.3.23 ☩ John.8.35 ☩ LXX.Ps.131.14* ☩ LXX.Jer.7.7 ☩ LXX.Exod.15.18 ☩ LXX.1Kgs.1.22 ☩ Matt.13.22 ☩ Rom.12.2 ☩ 1Tim.6.17 ☩ 2Tim.4.10 ☩ Rom.1.25 ☩ Phil.4.20 ☩ Eph.3.9}