singleton

• Существительное, обозначающее один объект или экземпляр, в отличие от пары или группы; также используется в математике для множества, содержащего ровно один элемент, и в карточных играх для единственной карты масти на руке.

A noun referring to a single object or instance, as distinguished from a pair or group; also used in mathematics for a set containing exactly one element, and in card games for the only card of a suit in a hand.

1. Single objectB2formal

   A single item or entity, as opposed to a pair or group.

   Единственный объект

   • The collection contained a singleton from the artist's early period.
   • In the database, this record is a singleton with no duplicates.
   • The algorithm returns a singleton when only one result is found.

   Синонимыentityindividualitemonesingleunit

   Антонимыcollectiongroupmultitudeset

2. Set with one elementC1formalscientific

   A mathematical set that contains exactly one member.

   Одноэлементное множество

   • The set {5} is a singleton in mathematics.
   • In set theory, a singleton is a set with a single element.
   • The function returns a singleton when the input is unique.

3. Card in bridgeC1formalsport

   A playing card that is the only card of its suit in a bridge hand as initially dealt.

   Одиночная карта

   • He was dealt a singleton in the heart suit.
   • Having a singleton can be a strategic advantage in bridge.
   • The player's hand contained a singleton spade.

   Синонимыstiff