Etymology
Advertisement

singleton (n.)

"single card of a suit in a hand," 1876, originally in whist, from single (adj.); compare simpleton, etc. Extended early 20c. to other instances of singularity.

Others are reading

Advertisement
Advertisement
Definitions of singleton

singleton (n.)
a single object (as distinguished from a pair);
singleton (n.)
a set containing a single member;
singleton (n.)
the playing card that is the only card in a suit held in a bridge hand as initially dealt;
From wordnet.princeton.edu