singleton

Definitions

• (playing cards) A playing card that is the only one of its suit in a hand, especially at bridge.
• (playing cards) A hand containing only one card of a certain suit.
• A single object, especially one of a group.
• (computing) A class that may not be instantiated more than once, i.e. that implements the singleton singleton design pattern.
• (mathematics) A set with exactly one element.
• A child or animal that is born singly, not as a twin or other multiple birth.
• A person without a romantic partner.
• A person without a dissociative identity dissociative identity.
• (phonetics) A single consonant, as opposed to a geminated consonant.