infinity
noun
Simple meaning
Endlessness, unlimitedness, absence of a beginning, end or limits to size.
Pronunciation
Say it like this:
ihnfinuhteeSay the bold part a little louder.
IPA pronunciation (US)
ɪnˈfɪnəti
This word is pronounced essentially the same in American and British English, so one transcription covers both.
IPA (International Phonetic Alphabet) is a standard way of writing speech sounds.
Definition
Everyday modern meanings first, grouped by part of speech.
noun
countablemathematics
A number that has an infinite numerical value that cannot be counted.
uncountable
Endlessness, unlimitedness, absence of a beginning, end or limits to size.
uncountable
A number which is very large compared to some characteristic number. For example, in optics, an object which is much further away than the focal length of a lens is said to be "at infinity", as the distance of the image from the lens varies very little as the distance increases further.
countableuncountable
The symbol ∞.
Word Aura™
How this word commonly comes across.
Aura for this meaning
This meaning: A number that has an infinite numerical value that cannot be counted.
Used this way, infinity is a specialist word that usually carries little praise or criticism of its own. This is a mathematical use: it is defined precisely and belongs to working with figures and calculations rather than to ordinary conversation.
- Emotional tone
- Neutral
- Formality
- Specialist/technical
- Intensity
- Not strongly marked
- How common
- Specialized
- Connotation
- Clinical and technical
- Usage feel
- Technical and specialized
Where it naturally appears
- Mathematics
- Geometry
- Academic writing
- Education/classroom
Usage note
In general conversation this sense usually needs explaining — outside its field, people reach for a plainer word.
Word Aura describes common impressions, not a measurement. Tone changes with sentence, speaker, relationship and situation.
More ways to use infinity
- “The artist tried to capture the feeling of infinity in their painting.”
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Dictionary data from Wiktionary via the Free Dictionary API. Simple meanings, combinations and word intelligence are built from verified reference data, no AI is used to load this page.