Multiplicity
Part of speech: noun
Definition: the state of being made of multiple diverse elements the number of values for which a given condition holds a large indeterminate number The number of instances that can occur on a given end of a relationship, including 0..1, 1, 0..* or *, and 1..*.
Example sentence: I'm an independent. I'm a centrist. A new generation is arriving that has grown up with a multiplicity of choice in every aspect of their lives, and yet politics is the last place that they are told that they should be satisfied with a choice between brand A and brand B. It doesn't fit the way they think. It doesn't fit the way they live.
Numerousness
Part of speech: noun
Definition: The state or quality of being numerous.