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