infinity
/ɪnˈfɪnɪti/
Proposed by a contributor, not yet supported by evidence.
Also seen as: infinities
Sense 1
Meaning · English
endlessness, unlimitedness, absence of a beginning, end or limits to size.
Noun
Examples
concept of infinity
Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01)
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).
Sense 2
Meaning · English
A number that has an infinite numerical value that cannot be counted.
Noun
Examples
Some of the most beautiful and thus appealing physical theories, including quantum electrodynamics and quantum gravity, have been dogged for decades by infinities that erupt when theorists try to prod their calculations into new domains. Getting rid of these nagging infinities has probably occupied
Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01)
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).
Common questions
What does “infinity” mean?
endlessness, unlimitedness, absence of a beginning, end or limits to size.
Is “infinity” formal or informal?
No register label has been reviewed yet — treat it as neutral and check the usage notes above.