Meaning of aeon in English:


(US eon)

Pronunciation /ˈiːən/

See synonyms for aeon

Translate aeon into Spanish


  • 1often aeonsAn indefinite and very long period of time.

    ‘he reached the crag aeons before I arrived’
    • ‘It is ages and aeons since I have been to the Hills.’
    • ‘I'll spend aeons staring at bottles of expensive shampoo humming ‘Maybe this time’.’
    • ‘Just after that, she started going out with a mutual friend of ours, who I'd dated aeons ago and was still friendly with.’
    • ‘Tradition, in fact, takes back the antiquity of the temple, not by centuries, but by aeons.’
    • ‘Ages and aeons ago, when I was in high school, I took a word processing course to fill a credit.’
    • ‘After what seemed like aeons, she finally reached the stairs.’
    • ‘Finally, after what seemed like aeons, they reached what Lia presumed was their destination.’
    • ‘In the 21st century, the 1930s seem to be aeons away.’
    • ‘The world has been living with contrasts, for aeons.’
    • ‘Oh, that's aeons away, almost in the realm of incredible.’
    • ‘That person, born aeons ago, unknowingly began a multibillion-dollar industry that focuses on treating illness.’
    • ‘It is being together, without seeing each other for aeons.’
    • ‘With many DVD's, this feature cannot be fast-forwarded so we have to suffer in silence for what seems aeons.’
    • ‘Audiences have been waiting aeons for a good sci-fi flick.’
    • ‘Long-term solutions to the problems affecting them would have been enacted aeons ago.’
    • ‘In any case, in earlier aeons, background radiation levels were much greater than today.’
    • ‘So in summary, my invention will bring 20 years of happiness followed by aeons of fear and destruction.’
    • ‘The authorities here have finally done something they should have done aeons ago.’
    • ‘It has been known for aeons of time that security resides within oneself - it cannot be bought.’
    • ‘It's been the stock question of doting aunties for aeons.’
    number of years, lifetime, duration, length of life
    View synonyms
    1. 1.1Astronomy Geology A unit of time equal to a thousand million years.
      ‘Because they have succumbed to erosion and weathering, perhaps for aeons, these craters are notoriously difficult to spot.’
      • ‘It's a rock place, a world of eons and eras and millions of years conflated to timelessness.’
      • ‘Over the eons the lunar spin rate has been damped by Earth's gravity, because the Moon's mass distribution is not uniform.’
      • ‘Stars and galaxies that old are a long way away from us: 13 bn light years, give or take a couple of aeons.’
      • ‘In these places are jagged cliffs falling almost vertical to the tide line, a remnant of aeons of erosion.’
    2. 1.2Geology A major division of geological time, subdivided into eras.
      ‘the Precambrian aeon’
      • ‘The record has been much deformed, reconstituted, and obliterated during the subsequent Proterozoic and Phanerozoic eons.’
      • ‘The rocks dated back into the Archean eon, before 2.5 billion years ago.’
      • ‘These creatures were direct descendants of the great dinosaurs of the long past Mesozoic Aeon.’
      • ‘The effects of UV on microorganisms growing under conditions prevalent during the early Precambrian Aeon are examined.’
      • ‘The Proterozoic aeon (2,500-540 million years ago) saw episodic increases in atmospheric oxygen content.’
  • 2Philosophy
    (in Neoplatonism, Platonism, and Gnosticism) a power existing from eternity; an emanation or phase of the supreme deity.

    ‘He goes on to note that all aeons emanate from it.’
    • ‘This aeon is the image of the eternal age of the next life.’
    • ‘Whether that master be regarded as a sage or as a Gnostic aeon, the orthodox view of him would be seriously challenged.’
    • ‘Freedom did not exist before history (in some Gnostic aeon of perfection), but actualizes itself in a passage through time.’
    • ‘The proposition that randomness is equal to the Platonic Aeon is not explained.’


Mid 17th century via ecclesiastical Latin from Greek aiōn ‘age’.