Singleton (Noun)

Meaning ¹

A single object (as distinguished from a pair).

Classification

Nouns denoting quantities and units of measure.

Hypernyms

• Unity
• 1
• I
• Ace
• Single

Hyponyms

• Fellow

Meaning ²

A set containing a single member.

Classification

Nouns denoting groupings of people or objects.

Examples

• The programmer carefully checked the singleton set to ensure it only contained one element.
• In mathematics, a singleton is a set that contains only one member, often denoted as {a}.
• The researcher was surprised to find a singleton in the data, as most sets had multiple elements.
• The software engineer used a singleton set to represent a unique identifier in the database.
• The set {3} is an example of a singleton, as it contains only one member, the number 3.

Meaning ³

The playing card that is the only card in a suit held in a bridge hand as initially dealt.

Classification

Nouns denoting man-made objects.