\ ˈtwin How to pronounce twin (audio) \

Definition of twin

 (Entry 1 of 3)

1a : 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

Definition of twin (Entry 2 of 3)

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


twinned; twinning

Definition of twin (Entry 3 of 3)

transitive verb

1 : to bring together in close association : couple

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

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Other Words from twin


twinship \ ˈtwin-​ˌship How to pronounce twinship (audio) \ noun

Synonyms & Antonyms for twin

Synonyms: Noun

Synonyms: Adjective

Antonyms: Adjective

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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
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Recent Examples on the Web: Noun In honor of Memorial Day, Nectar is treating shoppers to $399 worth of free sleep accessories with the purchase of any Nectar Mattress, which starts at just $499 for a twin. Melissa Lee, USA TODAY, "13 major mattress sales you can shop ahead of Memorial Day," 12 May 2020 The twin Foulkes homes have the classic features of Queen Anne architecture: Bay windows, narrow horizontal siding and ornamental woodwork. oregonlive, "Pittock Mansion architect’s Victorian home is for sale at $475,000," 8 May 2020 Gabe GinsbergGetty Images Victoria and Ysabel Jordan Identical twins Victoria and Ysabel Jordan were born on Febuary 9, 2014. Bianca Rodriguez, Marie Claire, "Who Are Michael Jordan's Children, Absent From ESPN's 'The Last Dance'?," 7 May 2020 After several rounds of testing, by 1963, the A-12s flew with twin Pratt & Whitney J58 turboramjet engines, with 32,500 pounds of thrust apiece, to reach speeds of Mach 3.2. Andrew Daniels, Popular Mechanics, "Elon Musk and Grimes Named Their Baby X Æ A-12. Here's the Plane Behind the Name," 6 May 2020 Sumilang and her husband were flying with 3-year-old twins and an infant. Sara Clemence, Condé Nast Traveler, "How Safe Is it to Fly? 7 Recent Passengers on What's Changed," 6 May 2020 The festival, which started in 1976, is recognized in the Guinness Book of World Records as the largest annual gathering of twins and multiples in the world. Robin Goist, cleveland, "Twinsburg’s annual Twins Days Festival canceled due to coronavirus concerns," 1 May 2020 Unlike those cars, however, this two-plus-two coupe is motivated by a monstrous powerplant, a twin-turbocharged V-8 that displaces 3.8 liters. Car and Driver, "How We'd Spec It: 2020 Ferrari Roma," 25 Apr. 2020 This leads to a large beautiful pantry with glass-front cabinets and a second twin set of Sub-Zero fridge and freezer. Judy Rose, Detroit Free Press, "$3.25M Bloomfield Twp. home is so big the wine cellar has a wine cellar," 18 Apr. 2020 Recent Examples on the Web: Adjective Inspired by John James Audubon, the twin brothers were known for portraits of native Texas birds with stunning levels of detail. Jeremy Hallock, Dallas News, "Bird Café, one of Fort Worth’s best restaurants, is closing permanently," 14 May 2020 Ruffalo plays twin brothers Dominick and Thomas Birdsey. Jeanne Jakle,, "Jeanne Jakle: 10 new TV series to watch in May, including ‘City of Angels,’ ‘Upload,’ ‘Hollywood’ and ‘Snowpiercer’," 24 Apr. 2020 And just like that, the Brannens and their twin 13-year-old daughters drove to Florida, to stay for a week with Chris Mack and his family. Paul Daugherty,, "Paul Daugherty: UC basketball coach John Brannen and his family are making March memories," 19 Mar. 2020 Born in Elkhorn, Hudson and his wife, Kathleen, were parents of twin daughters, Annie Kachelmeier and Sam Denevan. Annysa Johnson,, "A gifted electrician and handyman, Dale Hudson loved hunting, fishing and chasing balls on the golf course," 13 Mar. 2020 The couple had been married for roughly 20 years and have twin 16-year-old daughters. Carol Robinson |, al, "Alabama city councilman now charged with murder in wife’s death," 10 Mar. 2020 His mother, twin sister and grandparents had already been murdered. The Economist, "Order and peril Remembering Romek Marber, a master visual craftsman," 2 May 2020 The schmoozy schemer Jean-Ralphio Saperstein (Ben Schwartz), for instance, tried to recruit Leslie for an insurance scam, and then teamed up with his twin sister Mona-Lisa (Jenny Slate) instead. Jennifer Vineyard, New York Times, "‘Parks and Recreation’ Is Back. Here’s Where We Left Off.," 30 Apr. 2020 Izzy and her twin sister, Ellie, were born after the 2012 season. Susan Slusser,, "A’s Gone By: Personal heartbreak, professional triumph for Landon Powell," 27 Apr. 2020 Recent Examples on the Web: Verb Latrice Knighton, a Wauwatosa mom to twin toddlers, has gone online to order bubble bath, a face mask, foot stone, nail files and a new shade of fingernail polish. Amy Schwabe, Milwaukee Journal Sentinel, "A slower-paced, stay-at-home Mother's Day gives moms a rare opportunity to think about what they really want," 29 Apr. 2020 Queen Elizabeth recently toured the Back to Nature Garden that Kate Middleton helped create, and the two royals bonded and twinned in floral dresses. Nicole Saunders, Harper's BAZAAR, "Royal Baby Archie Already Has a Flower Named After Him," 30 May 2019 But listen for its energy and optimism, and the luster of Mitchell and Eagan’s twining voices. Alexis Soloski, New York Times, "A Cast Album I Love: ‘The Secret Garden’," 27 Apr. 2020 The study found that three groups of fibers were separated and twisted clockwise like an S and once twisted, the strands were twined counterclockwise to form a cord. Katie Hunt, CNN, "World's oldest string of yarn shows Neanderthals were smarter than we thought," 9 Apr. 2020 The Voice': John Legend uses his only save after twinning moment on this Beatles classic In the show's lit ring, Cedrice and Artis started off singing the ballad softly. Erin Jensen, USA TODAY, "'The Voice': All coaches congratulate Blake Shelton after his steal keeps this contestant," 7 Apr. 2020 League champion Manchester City, meanwhile, falls down one place to sixth but is likely to return to the top five next year should its new commercial deals be twinned with a run in this season's Champions League. Ben Church, CNN, "Barcelona topples Real Madrid to become the highest-earning soccer club in the world for the first time," 14 Jan. 2020 There were also glowing complexions aplenty with Mindy Kaling enhancing her own with rosy cheeks and burgundy lips, while models Elizabeth and Victoria Lejonhjarta opted to go au naturale with their twinning dewy skin. Akili King, Vogue, "The Best Beauty Instagrams of the Week: Gabrielle Richardson, Mindy Kaling, and More," 13 Oct. 2019 In fact, they were seen twinning just last week at an LA flea market. Carolyn Twersky, Seventeen, "Zendaya and Jacob Elordi Are Seeking Comfort in Each Other After Production of "Euphoria" Season 2 is Postponed," 18 Mar. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'twin.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of twin


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


1593, in the meaning defined at sense 1


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

History and Etymology for twin


Middle English, from twin twofold


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

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Time Traveler for twin

Time Traveler

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

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Statistics for twin

Last Updated

17 May 2020

Cite this Entry

“Twin.” Dictionary, Merriam-Webster, Accessed 30 May. 2020.

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More Definitions for twin


How to pronounce twin (audio)

English Language Learners Definition of twin

 (Entry 1 of 3)

: 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

English Language Learners Definition of twin (Entry 2 of 3)

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



English Language Learners Definition of twin (Entry 3 of 3)

: to bring (two things) together in close association
British : to form a relationship between (two towns in two countries)


\ ˈtwin How to pronounce twin (audio) \

Kids Definition of twin

 (Entry 1 of 2)

1 : either of two offspring produced at one birth
2 : one of two persons or things closely related to or very like each other On the opposite side of the river is the city's twin.

Kids Definition of twin (Entry 2 of 2)

1 : born with one other or as a pair at one birth my twin brother
2 : made up of two similar, related, or connected members or parts a twin-engine airplane
3 : being one of a pair Her face was a pasty white with twin spots of rouge on the cheeks.— Gail Carson Levine, Ella Enchanted
\ ˈtwin How to pronounce twin (audio) \

Medical Definition of twin

 (Entry 1 of 2)

: born with one other or as a pair at one birth a twin brother twin girls



Medical Definition of twin (Entry 2 of 2)

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

Other Words from twin

twinship \ -​ˌship How to pronounce twinship (audio) \ noun

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More from Merriam-Webster on twin

Thesaurus: All synonyms and antonyms for twin

Rhyming Dictionary: Words that rhyme with twin

Spanish Central: Translation of twin

Nglish: Translation of twin for Spanish Speakers

Britannica English: Translation of twin for Arabic Speakers Encyclopedia article about twin

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