Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “number”

number

noun uk   /ˈnʌm.bər/ us    /-bɚ/

number noun (SYMBOL)

A1 [C] (a sign or symbol representing) a unit that forms part of the system of counting and calculating: 25, 300, and a billion are all numbers. She's very good with numbers (= good at adding, subtracting, etc.). A1 [C] (written abbreviation no.) a number that is used to mark a particular example of something: They live at number 34 Orchard Street. Please write your credit card number on this form. What's our flight number? A1 [C] (written abbreviation no.) a phone number: I gave him my number.

number noun (AMOUNT)

B1 [S, + sing/pl verb] an amount or total: The number of people killed in road accidents fell last month. There has been an increasing number of cases of the disease. A small number of children are educated at home. A large number of invitations has been sent. Letters of complaint were surprisingly few in number (= there were not many of them). numbers [plural] a number of a particular description: Small numbers of children are educated at home. Large numbers of invitations were sent. Newspapers are produced in vast numbers. a number of things B2 several of a particular type of thing: I decided not to go, for a number of reasons. [S, + sing/pl verb] a group of people: On the trip, one of our number fell ill.

number noun (PARTICULAR THING)

[C] a particular example of something [C] a particular copy of a magazine: Do you have last week's number of the New Yorker? He's got all the back numbers (= previous copies) of the magazine. [C] informal a piece of clothing, especially a dress, that you admire: She was wearing a stylish Dior number. [C] US slang a person with a particular characteristic: He's a real sexy number, don't you think? [C] a short tune or song: Sing one of those romantic numbers. [C usually singular] mainly US slang something that is often said: He tried the usual/that old number about how his wife didn't understand him.

number

verb uk   /ˈnʌm.bər/ us    /-bɚ/

number verb (WRITE SYMBOL)

C1 [T] to give something a number in a series and usually to write this number on it: All the folders have been carefully numbered and filed away. Number the pages from one to ten.

number verb (AMOUNT)

C2 [L only + noun] If people or things number a particular amount, there are this many of them: After the hurricane the homeless numbered over 200,000.
(Definition of number from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of number?
Add Cambridge dictionaries to your browser to your website

Definitions of “number” 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