singleton
Americannoun
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a person or thing occurring singly, especially an individual set apart from others.
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a child or animal that is the only one born at one birth.
a research program involving twins and singletons.
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an only child in a family.
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Chiefly British. an unmarried person; a single.
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Cards. a card that is the only one of a suit in a hand.
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Mathematics. a set consisting of one given element.
noun
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bridge an original holding of one card only in a suit
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a single object, individual, etc, separated or distinguished from a pair or group
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maths a set containing only one member
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a person who is neither married nor in a relationship
Etymology
Origin of singleton
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Dennis is indeed twinless — not by a twist of fate but because he came into this world a singleton and is lying.
From Los Angeles Times • Sep. 5, 2025
Bring on the granny pants and awkward moments, because beloved singleton Bridget Jones is back on our screens on Thursday.
From BBC • Feb. 9, 2025
The women were 30 years old on average, all 18 or older, and experiencing singleton pregnancies.
From Science Daily • Feb. 20, 2024
“I’m the singleton of the family and the friend group,” said the 53-year-old Plessis, who lives in Manitoba, Canada.
From Seattle Times • Feb. 9, 2024
When a suit declaration has been doubled, a singleton is always an advantageous opening.
From Auction of To-day by Work, Milton C.
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
