Multiplicity (noun)

1. The state or quality of being multiple; the existence of more than one.
2. A great number; an abundance.
3. The number of different states or conditions that a system can have.

Origin:

Late latin multiplicitat-, from latin multiplex (see multiplex).

Examples:

1. The multiplicity of colors in a rainbow.
2. The multiplicity of options for solving the problem.
3. The multiplicity of cultures in the city.
4. A multiplicity of voices in the debate.
5. A multiplicity of purposes for the new technology.