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
1
: born with one other or as a pair at one birth
my twin brother
twin girls
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
Johnny Dodd, PEOPLE, 20 Dec. 2025
The couple has two 10-year-old sons—not actual twins but Irish ones, as Alex will later point out—which only makes the split harder.
—Stephanie Zacharek, Time, 19 Dec. 2025
Abigail Adams, PEOPLE, 18 Dec. 2025
Desperate to help, Mi-ji proposes a good old-fashioned twin swap.
—Kayti Burt, Time, 18 Dec. 2025
Brendan Le, PEOPLE, 18 Dec. 2025
Early conversations with the film’s visual effects supervisor, however, made Arkapaw realize that the compositing required for Jordan’s twinning shots would be compromised by the smaller gauge format, so the decision was made to go with 35mm.
—Jim Hemphill, IndieWire, 30 Nov. 2025
See All Example Sentences for twin
Examples are automatically compiled from online sources to
show current usage.
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Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
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Noun
Born to a single teenage mom — who, along with her gifted sons, realized that football was the brothers’ best path out of poverty — the twins left home at 16 to play at a private school in Florida, later becoming standout college players before being drafted into the NFL in 2023.
—Johnny Dodd, PEOPLE, 20 Dec. 2025
The couple has two 10-year-old sons—not actual twins but Irish ones, as Alex will later point out—which only makes the split harder.
—Stephanie Zacharek, Time, 19 Dec. 2025
Adjective
The two people who were on board the twin-engine plane were both pronounced dead at the scene, according to the DuPage Airport Authority.
—Abigail Adams, PEOPLE, 18 Dec. 2025
Desperate to help, Mi-ji proposes a good old-fashioned twin swap.
—Kayti Burt, Time, 18 Dec. 2025
Verb
Annie and Curtis twinned with their striking silver hair at the 2016 Golden Globes, where the veteran actress was nominated for her work in Scream Queens.
—Brendan Le, PEOPLE, 18 Dec. 2025
Early conversations with the film’s visual effects supervisor, however, made Arkapaw realize that the compositing required for Jordan’s twinning shots would be compromised by the smaller gauge format, so the decision was made to go with 35mm.
—Jim Hemphill, IndieWire, 30 Nov. 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 22 Dec. 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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