[ ih-tur-ni-tee ]
/ ɪˈtɜr nɪ ti /
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See synonyms for: eternity / eternities on Thesaurus.com

noun, plural e·ter·ni·ties.
infinite time; duration without beginning or end.
eternal existence, especially as contrasted with mortal life: the eternity of God.
Theology. the timeless state into which the soul passes at a person's death.
an endless or seemingly endless period of time: We had to wait an eternity for the check to arrive.
eternities, the truths or realities of life and thought that are regarded as timeless or eternal.
Were you ready for a quiz on this topic? Well, here it is! See how well you can differentiate between the uses of "was" vs. "were" in this quiz.
Question 1 of 7
“Was” is used for the indicative past tense of “to be,” and “were” is only used for the subjunctive past tense.

Origin of eternity

1325–75; Middle English eternite<Latin aeternitās.See eterne, -ity


non·e·ter·ni·ty, nounpre·e·ter·ni·ty, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use eternity in a sentence

British Dictionary definitions for eternity

/ (ɪˈtɜːnɪtɪ) /

noun plural -ties
endless or infinite time
the quality, state, or condition of being eternal
(usually plural) any of the aspects of life and thought that are considered to be timeless, esp timeless and true
theol the condition of timeless existence, believed by some to characterize the afterlife
a seemingly endless period of timean eternity of waiting
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012