IPA: /ˌmʌltɪˈplɪsɪti/
KK: /mʌlˈtɪplɪsɪti/
A large number or variety of things or ideas.
The conference showcased a multiplicity of perspectives on climate change.
Multiplicity → It is formed from "multi-" (meaning many) and "plicare" (meaning to fold). The word "multiplicity" refers to the state of being folded many times or having many parts or elements.
Think of 'many' ('multi-') things being 'folded' ('plicare') together, which helps you remember that multiplicity means having many parts.