1
a
: either of two offspring produced in the same pregnancy
b
2
: one of two persons or things closely related to or resembling each other
3
: a compound crystal composed of two adjoining crystals or parts of crystals of the same kind that share a common plane of atoms
twinned; twinning
1
: to bring forth twins
2
of a crystal
: to grow in a compound form with two adjoining sections that share a common plane of atoms
Synonyms
Examples of twin in a Sentence
Noun
She's the mother of twins.
The twins went swimming after lunch.
My sister just had twins.
Sarah and her brother are twins.
Adjective
the twin goals of reducing oil dependence and protecting the environment
Recent Examples on the Web
Dominique Fluker, Essence, 16 Aug. 2024
Photos of him holding up the twins’ birth certificates have also been widely shared on social media platforms.
—Chantelle Lee, TIME, 14 Aug. 2024
Greg Evans, Deadline, 5 Aug. 2024
The plushest have room-size showers fitted with twin showerheads.
—Julie Belcove, Robb Report, 4 Aug. 2024
Clara McMahon, Peoplemag, 3 Aug. 2024
At first glance they might have been twinned; two women from very different corners, at the top of their respective careers, defining power dressing on their own terms.
—Leah Dolan, CNN, 31 July 2024
See all Example Sentences for twin 
Noun
Fast forward to 2023, and the twins joined the happily married couple at the Oscars and Vanity Fair after-party in support of their mom, who was nominated in the Best Supporting Actress category.
—Dominique Fluker, Essence, 16 Aug. 2024
Photos of him holding up the twins’ birth certificates have also been widely shared on social media platforms.
—Chantelle Lee, TIME, 14 Aug. 2024
Adjective
The show combines the twin dramas of military life and police procedural.
—Greg Evans, Deadline, 5 Aug. 2024
The plushest have room-size showers fitted with twin showerheads.
—Julie Belcove, Robb Report, 4 Aug. 2024
Verb
The Sleep Zone Cooling Mattress is available in nine colors and in bed sizes twin through California king (including a short queen size).
—Clara McMahon, Peoplemag, 3 Aug. 2024
At first glance they might have been twinned; two women from very different corners, at the top of their respective careers, defining power dressing on their own terms.
—Leah Dolan, CNN, 31 July 2024
See all Example Sentences for twin
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'twin.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
Dictionary Entries Near twin
Cite this Entry
“Twin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/twin. Accessed 19 Aug. 2024.
Copy CitationKids Definition
twin
1 of 3 adjective1
: born with one other or as a pair at one birth
my twin brother
twin girls
2
a
: made up of two similar, related, or connected members or parts
b
: being one of a pair
a twin city
twin
2 of 3 verb
twinned; twinning
: to produce or give birth to twins
twin
3 of 3 noun
: either of two offspring produced at a birth compare fraternal twin, identical twin
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