Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “infinity”

infinity

noun uk   /ɪnˈfɪn.ɪ.ti/ us    /-ə.t̬i/
[U] time or space that has no end: the infinity of the universe the concept of infinity [U] a place that is so far away that it cannot be reached: figurative The mountain range stretched away into infinity. [U] a number that is larger than all other numbers [S] an extremely large number of something: an infinity of stars in the galaxy
(Definition of infinity from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of infinity?
Add Cambridge dictionaries to your browser to your website

Definitions of “infinity” in other dictionaries

Word of the Day

mutant

an organism that is different from others of its type because of a permanent change in its genes

Word of the Day

What’s that lovely smell?

by Kate Woodford,
October 29, 2014
As adult humans, we can distinguish about 10,000 different smells. It’s no wonder, then, that we have so many words and expressions to describe them. This week we’re taking a look at those smell words – words that describe good smells and words that describe bad smells. Most smell words are either

Read More 

high-frequency trading noun

October 27, 2014
a type of stock market trading that uses very complex technology to trade extremely quickly, often making tiny profits which nevertheless add up to substantial sums Lewis’s book, Flash Boys, is driving a huge amount of attention toward the topic of high frequency trading, and it has rekindled some of

Read More