Singleton (Noun)
Meaning 1
A set containing a single member.
Classification
Nouns denoting groupings of people or objects.
Meaning 2
A single object (as distinguished from a pair).
Classification
Nouns denoting quantities and units of measure.
Hypernyms
Hyponyms
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.