number Definition in Cambridge American English Dictionary
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Definition of "number" - American English Dictionary

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numbernoun

number noun (SYMBOL)

 us   /ˈnʌm·bər/ [C] (plural nos.) (abbreviation no.) a unit or its symbol that forms part of a system of counting and calculating, and that represents an amount or position in a series: You can write numbers in words, such as six, seven, and eight, or with symbols, such as 6, 7, and 8.  us   /ˈnʌm·bər/ [C] (plural nos.) (abbreviation no.) A number is also a specific set of symbols in a particular order that represent someone or something: Please write down your Social Security number.  us   /ˈnʌm·bər/ [C] (plural nos.) (abbreviation no.) A number can also be a position in a series: We’re up to 10 – who has the next number?

number noun (AMOUNT)

 us   /ˈnʌm·bər/ [C/U] an amount or total: [C] A large number of tickets were sold almost immediately. [C] Large numbers of people (= A lot of people) crowded the streets. [U] Quite a number of (= Many) cases of the flu have been reported already.  us   /ˈnʌm·bər/ [C/U] A number of things is several of them: [U] There were a number of causes for the accident.  us   /ˈnʌm·bər/ [C/U] Any number of things is a lot of them: [U] He’d already heard any number of excuses.

number noun (GRAMMAR)

grammar /ˈnʌm·bər/ [U] the forms of words, esp. nouns, pronouns, and verbs, that show whether they are singular or plural

number noun (SONG)

 us   /ˈnʌm·bər/ [C] a song, dance, or other part in a performance: The last number she sang was a beautiful, slow ballad.

numberverb

 us   /ˈnʌm·bər/

number verb (GIVE A NUMBER)

[T] to give a different number to each of two or more things, esp. in a particular order: The software automatically numbers the footnotes.

number verb (TOTAL)

[L] to be (a total): The crowd numbered over 100,000.
(Definition of number from the Cambridge Academic Content Dictionary © Cambridge University Press)
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