Multiplicity/ˌmʌltɪˈplɪsəti/ Definition 1 of 4Pro Tip 1/2Broader Context Use 'multiplicity' to express a varied and complex situation or entity with many elements. She marveled at the multiplicity of cultures in the city. Pro Tip 2/2Not Always Physical 'Multiplicity' can refer to non-physical aspects like ideas, feelings, and possibilities. The book explores a multiplicity of themes and emotions.