Singleton
Surname or locality
A singleton is a single thing where multiples are possible or expected.
In card games, it's the only card of a suit in a hand.
In statistics, it's a set with one member.
A singleton birth produces one child rather than twins or triplets.
In programming, a singleton is a design pattern ensuring a class has only one instance: The database connection is implemented as a singleton.
Unwed male adult
- bacheloretteUnmarried woman
- spinsterUnmarried older woman
- soloPerformance by one
- unattachedNot joined or connected
dating · eligible · independent · loner · solitary · celibate · widowed · divorced
Person before puberty
- onlyExclusively, nothing more
- birthComing into the world
- firstbornFirst child born
- soleFoot's bottom surface
heir · sibling · twin · family · parent · pregnancy · nursery · eldest
Arrange in position
- elementBasic substance or factor
- unitIndividual part or measure
- cardinalitySize of a set
- oneLowest positive integer
subset · member · empty · collection · discrete · combinatorics · enumeration · ordered
Grouping by shared traits
- instanceSingle occurrence of something
- objectTangible entity or aim
- patternRecurring arrangement or template
- designPurposeful creative planning
static · Java · constructor · method · instantiation · encapsulation · global · access
bachelor
Unwed male adult
- bacheloretteUnmarried woman
- spinsterUnmarried older woman
- soloPerformance by one
unattached · dating · eligible · independent · loner · solitary · celibate · widowed · divorced · unwed
child
Person before puberty
sole · heir · sibling · twin · family · parent · pregnancy · nursery · eldest · youngest
set
Arrange in position
- elementBasic substance or factor
- unitIndividual part or measure
- cardinalitySize of a set
one · subset · member · empty · collection · discrete · combinatorics · enumeration · ordered · unique
class
Grouping by shared traits
- instanceSingle occurrence of something
- objectTangible entity or aim
- patternRecurring arrangement or template
design · static · Java · constructor · method · instantiation · encapsulation · global · access · registry
ace
Single-pip card
- spadesFlat-bladed digging implements
- heartsCirculatory system engines
- diamondsPrecious crystallized carbon
clubs · hand · dealt · suit · poker · bridge · trick · void · doubleton · distribution
- Diageo BrandsJohnnie Walker, Smirnoff, Guinness, Tanqueray, Captain Morgan
- NSW PlacesSydney, Newcastle, Bondi, Liverpool, Orange
- SussexBrighton, Hastings, Eastbourne, Chichester, Crawley
- Swansea BaySwansea
Singletonmultiple
Consisting of many parts
plurality · group · set · collection · multitude
Singletontwins
Siblings born simultaneously
multiples · triplets · multiple birth · fraternal twins · identical twins