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
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
Ming-Chien Chyu, Forbes.com, 1 Aug. 2025
Oleksy, 39, tells PEOPLE that Hulk, who had a strained relationship with Brooke, 37, did not show interest in the couple's twins Oliver Andrew and Molly Gene after they were born in January.
—Natasha Dye, People.com, 1 Aug. 2025
Bill Stone, Forbes.com, 3 Aug. 2025
In an injury report, it would be labeled as a chest injury, but Bella and her twin sister, Brie Bella (Brianna Danielson), revealed what the injury really was.
—Ryan Morik, FOXNews.com, 2 Aug. 2025
Zoey Lyttle, People.com, 11 July 2025
There are also experiences with characters like Astrid and Stormfly, and twins Ruffnut and Tuffnut, all of whom are ready for interactions not just with guests but among each other.
—Abbey White, HollywoodReporter, 30 May 2025
See All Example Sentences for twin
Examples are automatically compiled from online sources to
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Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
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Noun
Emerging tools like supply-chain AI and digital twins offer even greater foresight.
—Ming-Chien Chyu, Forbes.com, 1 Aug. 2025
Oleksy, 39, tells PEOPLE that Hulk, who had a strained relationship with Brooke, 37, did not show interest in the couple's twins Oliver Andrew and Molly Gene after they were born in January.
—Natasha Dye, People.com, 1 Aug. 2025
Adjective
Stocks had been boosted by the twin forces of better-than-expected earnings and a receding threat of recession.
—Bill Stone, Forbes.com, 3 Aug. 2025
In an injury report, it would be labeled as a chest injury, but Bella and her twin sister, Brie Bella (Brianna Danielson), revealed what the injury really was.
—Ryan Morik, FOXNews.com, 2 Aug. 2025
Verb
Ami and Justin McClure are also parents to twin sisters Ava and Alexis, 12, who star in their videos alongside their younger son, Jersey, 7.
Episode 4 of Born to Be Viral explores how creators can boost their viewership by making videos that follow a trending format.
—Zoey Lyttle, People.com, 11 July 2025
There are also experiences with characters like Astrid and Stormfly, and twins Ruffnut and Tuffnut, all of whom are ready for interactions not just with guests but among each other.
—Abbey White, HollywoodReporter, 30 May 2025
See All Example Sentences for twin
Cite this Entry
“Twin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/twin. Accessed 7 Aug. 2025.
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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