number

A member of the set of positive integers; one of a series of symbols of unique meaning in a fixed order that can be derived by counting.

A member of any of the following sets of mathematical objects: integers, rational numbers, real numbers, and complex numbers. These sets can be derived from the positive integers through various algebraic and analytic constructions.

Arithmetic.

A symbol or word used to represent a number.

A numeral or a series of numerals used for reference or identification.