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1. (Telecommunications) a set of figures identifying the telephone of a particular subscriber, and used in making connections to that telephone
2. (plural) extremely large numbers, esp in reference to salaries or prices
1. a mathematical unit used to express an amount, quantity, etc., usu. having precise relations with other such units: Six is an even number.
2. a numeral or group of numerals.
3. the sum, total, or aggregate of a collection of units: the number of people with reserved seats.
4. the particular numeral assigned to an object to designate its place in a series: a house number; a license number.
5. one of a series of things distinguished by or marked with numerals.
6. a certain collection or quantity not precisely reckoned, but considerable: a number of times.
7. a collection or company.
a. a considerable quantity; many: Numbers came to the parade.
b. numerical strength or superiority.
c. metrical feet; verse.
e. Informal. the figures representing the actual cost, expense, profit, etc.
9. a tune or arrangement for singing or dancing.
10. a distinct performance within a show, as a song or dance.
11. a single issue of a periodical.
12. a code of numerals, letters, or a combination of these, as that assigned to a particular telephone.
13. Gram. a category of inflection or other variation in the form of a word serving to indicate whether the word has one or more than one referent, as in the distinction between singular and plural and, in some languages, dual or trial.
14. Informal. person; individual: a cute number.
15. Informal. an article of merchandise, esp. of wearing apparel, offered for sale.v.t.
16. to mark with or distinguish by numbers.
17. to amount to or comprise in number; total.
18. to consider or include in a number: I number myself among his friends.
19. to count over one by one; enumerate; tell.
20. to fix the number of.
21. to ascertain the amount or quantity of; count.
22. to apportion or divide.v.i.
23. to make a total; reach an amount.
24. to count.Idioms:
1. by the numbers,
a. according to standard procedures; by the book.
b. together or in unison to a called-out count.
2. do a number on, Slang. to undermine or humiliate.
3. without number, of unknown or countless number; vast.
[1250–1300; (n.) Middle English nombre < Old French < Latin numerus; (v.) Middle English nombren < Old French nombrer < Latin numerāre (derivative of numerus)]
usage: See amount, collective noun.