Definition of singletons Singletons

We found 3 definitions of singletons from 2 different sources.

What does singletons mean?

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Noun Plural: singletons
singleton - a single object (as distinguished from a pair)
		1, one, single, i, unity, ace a single person or thing; "he is the best one"; "this is the one I ordered"
singleton - the playing card that is the only card in a suit held in a bridge hand as initially dealt
singleton - a set containing a single member

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singleton (Noun)
A playing card that is the only one of its suit in a hand, especially at bridge.
singleton (Noun)
A single object, especially one of a group.
singleton (Noun)
A class that may not be instantiated more than once, i. e. that implements the singleton singleton design pattern .
singleton (Noun)
A set with exactly one element.
singleton (Noun)
A child or animal that is born singly, not as a twin or other multiple birth.

singleton (n.)
In certain games at cards, as whist, a single card of any suit held at the deal by a player; as, to lead a singleton.

singleton
A very foolish fellow; also a particular kind of nails.
singleton
A corkscrew, made by a famous cutler of that name, who lived in a place called Hell, in Dublin; his screws are remarkable for their excellent temper.