The number of terms that can inhabit a type; the possible values of a type.
The number of elements a given set contains.
The status of being cardinalitial
The property of a relationship between a database table and another one, specifying whether it is one-to-one, one-to-many, many-to-one, or many-to-many.
A number, assigned to something, such that it may be compared to others numerically
A measure of the energy released by an earthquake (e.g. on the Richter scale).
An order of magnitude.
The absolute or relative size, extent or importance of something.
Of a vector, the norm, most commonly, the two-norm.
The apparent brightness of a star, with lower magnitudes being brighter; apparent magnitude
A ratio of intensity expressed as a logarithm.