Greek word · Strong's G165

αἰών

aiṓn · noun · “age, eternity”

In a sentence

Aiōn means age or eon — “forever” in the highest sense, and the contrast between this present age and the age to come, central to Christian hope.

Aiōn is the noun behind English “eon.” It names a great span of time, an age, or eternity itself. The New Testament repeatedly distinguishes “this present age” from “the age to come.”

Jesus’ resurrection has already opened the new age in the middle of the old. Believers therefore live as people of two ages — present in this one, citizens of the next, sustained by hope of the “eternal (aiōnios) life” already begun.

Strong's reference

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

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

Reference gloss from Strong's Concordance (1890, public domain).

Key verses BSB · Public Domain (CC0)

Matthew 12:32 “Whoever speaks a word against the Son of Man will be forgiven, but whoever speaks against the Holy Spirit will not be forgiven, either in this age or in the one to come.” Romans 12:2 “Do not be conformed to this world, but be transformed by the renewing of your mind. Then you will be able to test and approve what is the good, pleasing, and perfect will of God.” 1 Timothy 1:17 “Now to the King eternal, immortal, and invisible, the only God, be honor and glory forever and ever. Amen.”

Original BibleDawn word study. Original-language data and the public-domain Strong's (1890) gloss are referenced; see sources.