number-n; 14 Senses

Sense Number 1: The count of entities, an enumeration of items

Commentary: NUMBER[+quantity][+count]

Examples:
He had a number of chores to do.
The number of parameters is small.
There was a large number of students in attendance at the football game.
We had a huge rise in the number of phone calls since the advertisement was aired.
There are a number of misconceptions about AI.
There are any number of ways to prove this theorem.
The skies were filled with migrating birds without number. (not countable)

Mappings:
WordNet 3.0 Sense Numbers: 1

Sense Number 2: a mathematical entity

Commentary: NUMBER[+entity][+member][+set][+mathematical]

Examples:
Suzy wrote the number 7 on top of all of her papers for luck.
George learned to write his numbers in the first grade.
'i' belongs to the set of imaginary numbers.
The Romans used different notation to represent their numbers.
I'm thinking of an even number between 1 and 100.

Mappings:
WordNet 3.0 Sense Numbers: 2, 5

Sense Number 3: alphanumeric sequence used for identification

Commentary: NUMBER[+entity][+symbolic][+alphanumeric][+sequence][+identification][+phone/+social_security/+credit_card] A numeral or string of numerals that is used for identification

Examples:
She refused to give them her Social Security number.
I can never remember my student ID number.
John is good at remembering friends' phone numbers.
Suzy never givers her credit card number over the telephone.
Please enter your Personal Identification Number when prompted.
Each prisoner in the camp had a number tattooed on the arm.
Flight number 744 to Miami has been delayed.
That number on the bottle is the expiration date, I believe.

Mappings:
WordNet 3.0 Sense Numbers: 1

Sense Number 4: Item of merchandise

Commentary: NUMBER[+entity][+artifact][+merchandise]
NOTE: informal usage

Examples:
I need a dress and I like that little red number in the window.
Look at that girl, what a hot little number. (metaphoric extension)

Mappings:
WordNet 3.0 Sense Numbers: 11

Sense Number 5: Performance, routine

Commentary: NUMBER[+activity][+performance][+theatrical][+routine] A piece of music or a dance routine

Examples:
She played a catchy little number on the piano for us.
They used an old number from Vaudeville for the opening act.
She really did a number on him. (metaphoric, slangy extension)

Mappings:
WordNet 3.0 Sense Numbers: 3

Sense Number 6: Placeholder: Do Not Choose

Examples:

Mappings:
WordNet 3.0 Sense Numbers: 1

Sense Number 7: Grammatical Plurality

Commentary: NUMBER[+relation][+role][+marker][+grammatical][+plural/+singular] The grammatical category for the forms of words that are used depending on the number of entities involved.

Examples:
In English the subject and the verb must agree in number.
Those languages don't mark number morphologically, plurality is determined from other words.
John had trouble assigning the correct case, gender and number to German pronouns.

Mappings:
WordNet 3.0 Sense Numbers: 10

Sense Number 8: A measurement

Commentary: NUMBER[+system][+classification][+measurement] A clothing measurement

Examples:
Look for a number 9 shoe in black for me, please.
The numbers on these dresses are for Women's sizes, not Misses.

Mappings:
WordNet 3.0 Sense Numbers: 9

Sense Number 9: a group or collection

Commentary: NUMBER[+entity][+group][+people]

Examples:
There were some distinguished names among our number at the dinner last night.
Some of their number were jumping overboard and trying to swim to shore.
There is safety in numbers. (groups of people)
The weight of numbers turned the battle against them. (many soldiers)

Mappings:
WordNet 3.0 Sense Numbers: 7

Sense Number 10: a specific issue of a periodical

Commentary: NUMBER[+entity][+document][+periodical][+issue][+sequenced]

Examples:
Mary has misplaced her October number of Travel magazine.
Two numbers are missing from this otherwise complete collection of 1922 fashion magazines.

Mappings:
WordNet 0.0 Sense Numbers: 7

Sense Number 11: lottery games, gambling

Commentary: NUMBER[+activity][+game][+lottery]
NOTE: occurs in the plural

Examples:
His brother lost a lot of money on the numbers.
The police broke up a numbers racket in Newark.

Mappings:
WordNet 0.0 Sense Numbers: 7

Sense Number 12: follow standard operating procedure

Commentary: Idiom: by_the_numbers

Examples:
They were told to execute the operation by the numbers.
He's the risk-adverse type who manages by the numbers.

Mappings:
WordNet 0.0 Sense Numbers: idiom_1

Sense Number 13: understand the motives, purposes

Commentary: Idiom: have_one's_number

Examples:
They've got your number so you'd best give up the whole effort.
John warned Bob that he had his number.

Mappings:
WordNet 0.0 Sense Numbers: Idiom_2

Sense Number 14: the time or reckoning

Commentary: Idiom: someone's_number_is_up

Examples:
I guess he just figured his number was up, and he quit trying to fight the illness.
Our number's not up yet, we still have a shot at the championship.

Mappings:
WordNet 0.0 Sense Numbers: Idiom_3