noun \ˈtwin\

: either one of two babies that are born at the same time to the same mother

: either one of two similar things that form a pair

Full Definition of TWIN

a :  either of two offspring produced at a birth
b plural capitalized :  gemini
:  one of two persons or things closely related to or resembling each other
:  a compound crystal composed of two adjoining crystals or parts of crystals of the same kind that share a common plane of atoms
twin·ship \-ˌship\ noun

Examples of TWIN

  1. She's the mother of twins.
  2. The twins went swimming after lunch.
  3. My sister just had twins.
  4. Sarah and her brother are twins.

Origin of TWIN

Middle English, from twin twofold
First Known Use: 14th century

Rhymes with TWIN



: to bring (two things) together in close association

: to form a relationship between (two towns in two countries)


Full Definition of TWIN

transitive verb
:  to bring together in close association :  couple
intransitive verb
:  to bring forth twins
:  to grow as a twin crystal

First Known Use of TWIN

14th century



—used to describe children who are twins

: made up of two similar things that are used together

: forming one of a pair of related or connected ideas or places

Full Definition of TWIN

:  born with one other or as a pair at one birth <my twin brother> <twin girls>
a :  made up of two similar, related, or connected members or parts :  double
b :  paired in a close or necessary relationship :  matching
c :  having or consisting of two identical units
d :  being one of a pair

Examples of TWIN

  1. the twin goals of reducing oil dependence and protecting the environment

Origin of TWIN

Middle English, twofold, double, from Old English twinn; akin to Old Norse tvinnr two by two, Old English twā two
First Known Use: 1593

Related to TWIN

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