1.the property possessed by a sum or total or indefinite quantity of units or individuals;
he had a number of chores to do
2.a concept of quantity derived from zero and units;
every number has a unique position in the sequence
3.a short theatrical performance that is part of a longer program;
he did his act three times every evening
4.a numeral or string of numerals that is used for identification;
she refused to give them her Social Security number
5.the number is used in calling a particular telephone;
he has an unlisted number
6.a symbol used to represent a number;
he learned to write the numerals before he went to school
7.one of a series published periodically;
she found an old issue of the magazine in her dentist's waitingroom
8.a select company of people;
I hope to become one of their number before I die
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
10. an item of merchandise offered for sale;
she preferred the black nylon number
11. a clothing measurement;
a number 13 shoe