twin

1 of 3

noun

1
a
: either of two offspring produced in the same pregnancy
b
Twins plural : gemini
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
twinship noun

twin

2 of 3

adjective

1
: 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 : double
b
: paired in a close or necessary relationship : matching
c
: having or consisting of two identical units
d
: being one of a pair

twin

3 of 3

verb

twinned; twinning

transitive verb

1
: to bring together in close association : couple
2

intransitive verb

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
Noun
Pitt and Jolie share six children – Maddox, Pax, Zahara, Shiloh and twins Vivienne and Knox – who were between 8 and 15 years old at the time of the alleged incident. USA TODAY, 5 Apr. 2024 The remaining guest cabins can be configured as doubles or twins. Julia Zaltzman, Robb Report, 5 Apr. 2024 The couple are parents of Maddox, 22, Pax, 19, Zahara, 18, Shiloh, 17 and twins Vivienne and Knox, 15. Martha Ross, The Mercury News, 4 Apr. 2024 The two grabbed a bite with family and friends, then enjoyed some time outside with their twins, son Jaxon Matthew and daughter Brooklyn Marie, 6 months. Angela Andaloro, Peoplemag, 2 Apr. 2024 There was no way Mark and Jan Lawrance could have known what life would hold for their adorable twins, Will and Joe. Jim Axelrod, CBS News, 31 Mar. 2024 The query leads into an emotional acoustic ballad that sees Beyoncé celebrating her children, twins Rumi and Sir and 12-year-old Blue Ivy. Emily Zemler, Rolling Stone, 29 Mar. 2024 Siemens' use of digital twins and VR for employee training on complex machinery is a prime example of how embracing new technologies can revolutionize learning and development. Somdip Dey, Forbes, 28 Mar. 2024 Throughout its travels, the spacecraft has collected information about its surroundings and its status while drifting deeper and deeper into the universe, compiling insights on the outer solar system and the space beyond the outer solar system alongside its twin, the Voyager 2 spacecraft. Sam Walters, Discover Magazine, 26 Mar. 2024
Adjective
Double-play delight That double play was one of four twin killings for the Royals. Pete Grathoff, Kansas City Star, 5 Apr. 2024 Theroux also attended Bloom's twin sister's wedding in December of last year. Jenny Haward, Peoplemag, 5 Apr. 2024 The last piece of steel from the twisted remains of the twin towers was removed from ground zero only the previous year. Tamara Audi, New York Times, 4 Apr. 2024 Cannon and De La Rosa also share Zion, who is half of a twin duo with Zillion, and their daughter Beautiful. Jay Stahl, USA TODAY, 3 Apr. 2024 In these cases, the supercharger allows the twin turbos to build turbo boost pressure, eliminating that pesky turbo lag that can delay acceleration. Kristin Shaw, Popular Science, 3 Apr. 2024 At the time of his announcement, one woman had already given birth to twin baby sisters Lulu and Nana, while a second pregnancy and third child arrived the following year. Ed Cara / Gizmodo, Quartz, 2 Apr. 2024 And all that time my heart and mind believed the twin truths that everything would be okay and that everything was already over. Nell Frizzell, Vogue, 25 Mar. 2024 Diaz and Madden met in 2014 through Benji’s twin brother and bandmate, Joel Madden, and his wife, Nicole Richie. Mitchell Peters, Billboard, 23 Mar. 2024
Verb
Missing from the reunion were Stephen Collins, who played Reverend Eric Camden, as well as Jessica Biel, who played oldest daughter Mary, and twins Lorenzo and Nikolas Brino, who played youngest sons Sam and David. Esme Mazzeo, Peoplemag, 16 Mar. 2024 Danny DeVito and Arnold Schwarzenegger Reunite — and Target Batman — as Presenters 6 hr 16 min ago Danny DeVito and Arnold Schwarzenegger are twinning on the Oscars stage, three decades after appearing together in 1988's Twins. Lindsay Kimble, Peoplemag, 11 Mar. 2024 Chanel's most punk ambassador arrived with fiancée Dylan Meyer, continuing their pattern of coordinating looks without twinning. Emily Tannenbaum, Glamour, 10 Mar. 2024 Costar Zendaya twinned with Chalamet in a similar look, except her monochrome outfit was a shade of light pink. Nikita Eglis, Peoplemag, 2 Mar. 2024 Blunt opted for a Giorgio Armani gown adorned with sequins, crystals and rosettes, twinning in red with fellow nominee Margot Robbie. Brendan Le, Peoplemag, 18 Feb. 2024 Choose from seven colors, including white, purple, and blue and gray, and sizes twin through California king. Toni Sutton, Peoplemag, 7 Feb. 2024 Even more fun was the fact that some celebrity mothers used the opportunity to twin with their lookalike daughters. Alexandra Schonfeld, Peoplemag, 25 Jan. 2024 And as a testament to just that, Kate Hudson was recently spotted on Instagram sporting the Max Mara Teddy Bear Icon Coat and twinning with her daughter Rani Rose, who wore a kid’s version, during a winter getaway. Alexandra Domrongchai, Travel + Leisure, 22 Jan. 2024

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.

Word History

Etymology

Noun

Middle English, from twin twofold

Adjective

Middle English, twofold, double, from Old English twinn; akin to Old Norse tvinnr two by two, Old English twā two

First Known Use

Noun

14th century, in the meaning defined at sense 1a

Adjective

1593, in the meaning defined at sense 1

Verb

14th century, in the meaning defined at transitive sense 1

Time Traveler
The first known use of twin was in the 14th century

Dictionary Entries Near twin

Cite this Entry

“Twin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/twin. Accessed 19 Apr. 2024.

Kids Definition

twin

1 of 3 adjective
1
: 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

Medical Definition

twin

1 of 2 adjective
: born with one other or as a pair at one birth
a twin brother
twin girls

twin

2 of 2 noun
1
: either of two offspring produced at a birth
2
twins plural : a group of two offspring born at one birth
twinship noun

More from Merriam-Webster on twin

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