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singleton Synonyms

Another word for singleton

Choosing another word for singleton depends on context, so the synonyms and similar words below are separated across 3 exact definitions and ranked by match strength.
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• noun (Context 1)

A child or animal born alone in a single birth, in contrast to twins or a larger multiple birth; also, an only child.

Usage Example

"The pediatric study compared the early language development of twins with that of singletons."

Strong
only child

• noun (Context 2)

In mathematics, logic, and computer science, a set containing exactly one element, or a software design pattern that restricts the instantiation of a class to a single object.

Usage Example

"The database connection manager was implemented as a unit set to ensure that only one instance existed across the application."

Strongest
unit set

• noun (Context 3)

An unmarried or unattached person who is not in a romantic relationship (used informally).

Usage Example

"The housing market has seen a steady rise in compact apartments designed for urban singletons."

Strong
bachelor
bachelorette

Opposites of singleton

The opposite of singleton shifts depending on context. Common opposites include:

twin
triplet
doubleton
quadruplet
partner
spouse
empty set
null set
See all opposites of singleton

• Nearby Words

singleness
singles
singlet
singleton
singly
singsong
singsongy

Cite this Entry

Wordmom. (2026). Synonyms for Singleton. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/synonyms/singleton
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