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Multiplicity most commonly means a large number or a great variety.

It is the noun form of the adjective multiple, meaning more than one or several. It can also mean the state of being multiple.

Multiplicity is used in more specific ways in several different scientific fields, but all of them have to do with multiple instances of things.

Example: When designing a craft for space travel, you have to consider a multiplicity of issues.

The first records of multiplicity come from around the 1500s. It comes from the Late Latin ���ܱ��پ���������������, which derives from the Latin multiplex, meaning “multiple.” The suffix -ity is used to form abstract nouns that indicate a state or condition.

Multiplicity is most often used to mean “a large variety” (as in a multiplicity of options) or “a large number” (as in a multiplicity of problems). But sometimes multiplicity doesn’t refer to a variety of things but instead to variety in things. You might have heard the popular line from the poet Walt Whitman: “I contain multitudes.” When he said that, he was referring to the multiplicity of human beings’ internal selves—the way our identities are all made up of various pieces and elements, some of which are contradictory.

In psychology, the word multiplicity is used to describe the state experienced by people with dissociative identity disorder (formerly called multiple personality disorder), in which a person experiences multiple selves. In mathematics, multiplicity is used in relation to equations to refer to the number of times a value occurs. In physics, multiplicity refers to the number of levels that the energy of atoms, molecules, or nuclei splits into in certain scenarios, or the number of elementary particles in a group.

What are some other forms related to multiplicity?

• multiple (adjective)

What are some synonyms for multiplicity?

• profusion
• abundance
• assortment

What are some words that share a root or word element with multiplicity?��

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• multiply
• multiplication
• duplicity

What are some words that often get used in discussing multiplicity?

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• reasons
• elements
• forms
• issues
• identity
• selves

Multiplicity most commonly means “a great variety,” but using the phrase a great variety (or something similar) is much more common than saying multiplicity. When multiplicity is used, it tends to be used in a somewhat formal or technical way.

infinite thanks to the team for publishing my ten essential Indian recipes, from toor dal to beef kheema, lamb biryani to carrot kosambari — this is a love letter to the multiplicity of Indian home cooking 💌

— Tejal Rao (@tejalrao)

Yes, we experience multiplicity as an emerging-into-public-awareness form of neurodiversity, a neutral and widely-occuring spectrum of difference that has both challenges and gifts and advantages. Not inherently bad. Diversity is good.

— the Redwoods: a plural collective (@treemunity)

State elections have far reaching and long standing consequences that affect the moral and social groundwork for its citizens in a multiplicity of ways. Common knowledge – I realize; but as a citizen of the great Commonwealth of , it needs to be restated.

— Adam S. Denny (@Adam22Denny)

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Which of the following words is NOT a synonym of multiplicity?

A. variety
B. assortment
C. abundance
D. lack