number

n. mathematical value or its symbol; identifying numeral (e.g. of a house); indefinite amount, quantity of; sum, tally; act in a performance, musical piece; unit in a series; mathematics; quantity (Grammar); unique thing or person (Informal)

v. count; assign a number; equal in amount; limit, allot; be included in (a specific group); total, add up to

adj. anesthetized; lacking sensitivity (to pain); in shock; senseless

A number is an abstract idea used in counting and measuring. A symbol which represents a number is called a numeral, but in common usage the word number is used for both the idea and the symbol. In addition to their use in counting and measuring, numerals are often used for labels (telephone numbers), for ordering (serial numbers), and for codes (ISBNs). In mathematics, the definition of number has been extended over the years to include such numbers as zero, negative numbers, rational numbers, irrational numbers, and complex numbers.
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Noun
1. the property possessed by a sum or total or indefinite quantity of units or individuals; "he had a number of chores to do"; "the number of parameters is small"; "the figure was about a thousand"
(synonym) figure
(hypernym) amount
(hyponym) numerousness, numerosity, multiplicity
(derivation) keep down
2. a concept of quantity derived from zero and units; "every number has a unique position in the sequence"
(hypernym) definite quantity
(hyponym) coordinate, co-ordinate
(derivation) keep down
3. a short theatrical performance that is part of a longer program; "he did his act three times every evening"; "she had a catchy little routine"; "it was one of the best numbers he ever did"
(synonym) act, routine, turn, bit
(hypernym) performance, public presentation
(hyponym) show-stopper, showstopper, stopper
4. a numeral or string of numerals that is used for identification; "she refused to give them her Social Security number"
(synonym) identification number
(hypernym) positive identification
(hyponym) bank identification number, BIN, ABA transit number
(derivation) keep down
5. the number is used in calling a particular telephone; "he has an unlisted number"
(synonym) phone number, telephone number
(hypernym) signal, signaling, sign
6. a symbol used to represent a number; "he learned to write the numerals before he went to school"
(synonym) numeral
(hypernym) symbol
(hyponym) Arabic numeral, Hindu numeral, Hindu-Arabic numeral
(derivation) keep down
7. one of a series published periodically; "she found an old issue of the magazine in her dentist's waitingroom"
(synonym) issue
(hypernym) periodical
(hyponym) edition
(member-holonym) series, serial, serial publication
8. a select company of people; "I hope to become one of their number before I die"
(hypernym) company
(derivation) count
9. the grammatical category for the forms of nouns and pronouns and verbs that are used depending on the number of entities involved (singular or dual or plural); "in English the subject and the verb must agree in number"
(hypernym) grammatical category, syntactic category
10. an item of merchandise offered for sale; "she preferred the black nylon number"; "this sweater is an all-wool number"
(hypernym) merchandise, wares, product
11. a clothing measurement; "a number 13 shoe"
(hypernym) size
(classification) colloquialism
Verb
1. add up in number or quantity; "The bills amounted to $2,000"; "The bill came to $2,000"
(synonym) total, add up, come, amount
(hypernym) be
(hyponym) work out
(derivation) numeral
2. give numbers to; "You should number the pages of the thesis"
(hypernym) designate, denominate
(hyponym) foliate, paginate, page
(derivation) numeral
3. enumerate; "We must number the names of the great mathematicians"
(synonym) list
(hypernym) name, identify
(hyponym) itemize, itemise
(derivation) numeral
4. put into a group; "The academy counts several Nobel Prize winners among its members"
(synonym) count
(hypernym) classify, class, sort, assort, sort out, separate
5. determine the number or amount of; "Can you count the books on your shelf?"; "Count your change"
(synonym) count, enumerate, numerate
(hypernym) determine, find, find out, ascertain
(hyponym) recount
(derivation) numeral
6. place a limit on the number of
(synonym) keep down
(hypernym) limit, circumscribe, confine
(derivation) numeral

Verb
1. make numb or insensitive; "The shock numbed her senses"
(synonym) benumb, blunt, dull
(hypernym) desensitize, desensitise
Adjective
1. lacking sensation; "my foot is asleep"; "numb with cold"
(synonym) asleep(p), benumbed
(similar) insensible
2. (followed by `to') not showing human feeling or sensitivity; unresponsive; "passersby were dead to our plea for help"; "numb to the cries for mercy"
(synonym) dead(p), numb(p)
(similar) insensitive
3. so frightened as to be unable to move; stunned or paralyzed with terror; "petrified with fear"; "she was petrified by the eerie sound"; "too numb with fear to move"
(synonym) petrified
(similar) afraid(p)

(n.)
To reckon as one of a collection or multitude.
  

(n.)
To give or apply a number or numbers to; to assign the place of in a series by order of number; to designate the place of by a number or numeral; as, to number the houses in a street, or the apartments in a building.
  

(n.)
To count; to reckon; to ascertain the units of; to enumerate.
  

(n.)
To amount; to equal in number; to contain; to consist of; as, the army numbers fifty thousand.
  

(n.)
The state or quality of being numerable or countable.
  

(n.)
The measure of the relation between quantities or things of the same kind; that abstract species of quantity which is capable of being expressed by figures; numerical value.
  

(n.)
The distinction of objects, as one, or more than one (in some languages, as one, or two, or more than two), expressed (usually) by a difference in the form of a word; thus, the singular number and the plural number are the names of the forms of a word indicating the objects denoted or referred to by the word as one, or as more than one.
  

(n.)
That which is regulated by count; poetic measure, as divisions of time or number of syllables; hence, poetry, verse; -- chiefly used in the plural.
  

(n.)
That which admits of being counted or reckoned; a unit, or an aggregate of units; a numerable aggregate or collection of individuals; an assemblage made up of distinct things expressible by figures.
  

(n.)
Quantity, regarded as made up of an aggregate of separate things.
  

(n.)
Numerousness; multitude.
  

(n.)
A numeral; a word or character denoting a number; as, to put a number on a door.
  

(n.)
A collection of many individuals; a numerous assemblage; a multitude; many.
  

Number People usually think of number as merely a varying multiplicity of units, a plurality of individuals, which is correct enough. Yet "Number lies at the root of the manifested Universe: numbers and harmonious proportions guide the first differentiations of homogeneous substance into heterogeneous elements; and number and numbers set limits to the formative hand of Nature" (Blavatsky) -- a strictly Pythagorean vision and conception. Our reasoning minds lend a spurious reality to abstractions; and from this viewpoint the genuine realities appear in the guise of such abstraction. Number is such an apparent abstraction; we know it only by its effects in that world which seems to us so real, and of which we regard number as an attribute. Yet nothing can be more fundamental than number. As Balzac said, number is an entity, a divinity; the creative Logos itself is called the Number, meaning number one, arising out of no-number or the zero. After this we have the duad, triad, etc. For the Pythagoreans number was a creative, emanationally formative power, and the Hebrew Sepher Yetsirah (Numbers of Creation) gives out the whole process of evolution in numbers, while in China the I Ching speaks of celestial numbers. All esoteric systems set great store by numbers -- some systems more so than others. For "we see the figures 1, 3, 5, 7, as perfect, because thoroughly mystic, numbers playing a prominent part in every Cosmogony and evolution of living Beings" (SD 2:35). See also SEPHIROTH