singleton Meaning, Definition & Usage

  1. noun a single object (as distinguished from a pair)
  2. noun a set containing a single member
  3. noun the playing card that is the only card in a suit held in a bridge hand as initially dealt

WordNet


Sin"gle*ton noun
Definitions
  1. 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.

Webster 1913