Examples of “singleton” in a Sentence

noun The only card of its suit in a card player's hand.

• He held a singleton spade and had to discard it early.

noun A baby or animal born alone rather than as part of a twin or multiple birth.

• Most human pregnancies result in a singleton rather than twins.

noun (programming) A design pattern where a class can only ever be created as one single object.

• The database connection is implemented as a singleton so only one instance exists.