twin

noun

\ ˈtwin

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

twin

adjective

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

twin

verb

twinned; twinning

Definition of twin (Entry 3 of 3)

transitive verb

1 : to bring together in close association : couple

2 : duplicate, match

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

Other Words from twin Synonyms & Antonyms More Example Sentences Learn More about twin

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Synonyms & Antonyms for twin

Synonyms: Noun

companion, fellow, half, match, mate

Synonyms: Adjective

binary, bipartite, double, double-barreled, double-edged, dual, duplex, twofold

Antonyms: Adjective

single

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

Justin showed off the comparison by posting a side by side of some old pics of Justin and the twins. — Carolyn Twersky, Seventeen, "Woah, Justin Bieber Looks So Much Like Cole and Dylan Sprouse As a Baby That They Could Be Triplets," 3 Sep. 2019 The Grable twins continued to follow similar paths after high school, playing collegiate sports and eventually choosing to coach as a profession. — Marco Cummings, The Denver Post, "Holy Family football assistant Keith Grable “having fun again” in return to high school coaching," 26 Aug. 2019 The Howze twins will add much to the offense and defense. — Mick Mccabe, Detroit Free Press, "Michigan high school football: Mick McCabe's top 25 teams for 2019," 25 Aug. 2019 Keon, 19, was born in Rapid City, S.D., while the twins were born a little more than a year later in Oklahoma City. — Creg Stephenson | Cstephenson@al.com, al, "Pick your Voisin: Trio of brothers could all make impact for South Alabama in 2019," 23 Aug. 2019 The twins communicate telepathically, going off the same design in their brains. — Harriot Manley, SFChronicle.com, "9 must-see murals in downtown Sacramento," 22 Aug. 2019 The twin of such populist chauvinism has always been a unique informality lacking in most nations abroad. — Victor Davis Hanson, National Review, "The American Middle Class," 22 Aug. 2019 The twins played at UTEP together, where Aaron broke the school’s record for rushing yards in a career and in a season. — Giana Han, baltimoresun.com, "Ravens’ top draft pick Marquise Brown held out of preseason game vs. Packers; Chris Board suffers concussion," 16 Aug. 2019 They are filled with vents, second-story windows and underground entrances that offer several solutions to problems that the twins come across. — Gieson Cacho, The Mercury News, "Review: ‘Wolfenstein Youngblood’ a sisterhood of traveling Nazi killers," 9 Aug. 2019

Recent Examples on the Web: Adjective

Remember how McCourty, the man who’d never sniffed the playoffs in nine previous years in the NFL, had come to New England to join his twin brother Devin and chase the championship dream. — Tara Sullivan, BostonGlobe.com, "Patriots defense has all the makings of dominance," 3 Sep. 2019 Wanting another shot at the NFL, McCray and his twin brother, Jordan, talked UCF coaches into allowing them to participate in the school’s pro day. — Scott Patsko, cleveland.com, "Justin McCray joins the Browns: 3 things to know about the offensive lineman," 1 Sep. 2019 Gabe and Mason Madsen, twin-brother class of 2020 recruits from Rochester, Minn., committed to play Bearcats' coach John Brannen via an announce on Twitter during Labor Day weekend. — Fletcher Page, Cincinnati.com, "UC basketball recruiting: Gabe and Mason Madsen commit to play for John Brannen," 1 Sep. 2019 Key moments With Sunnyslope suddenly ahead after Niko Haen hit twin brother David for a 5-yard TD in the third, Notre Dame seized control. — Danny Shapiro, azcentral, "Arizona high school football Week 2: Game results from around the Valley," 30 Aug. 2019 He was accompanied on the trip by his parents, Marc and Nikki Cooley, his twin brother Wyatt and 2-year-old brother Nash. — Emily Sorensen, Pomerado News, "Poway boy’s wish granted by Carlsbad company," 29 Aug. 2019 The boy’s twin brother, and the rest of his family, had been vaccinated. — Nick Paumgarten, The New Yorker, "The Message of Measles," 26 Aug. 2019 David and his twin brother, William, were the youngest of four siblings. — Tom Metcalf, Fortune, "David Koch, Industrialist Who Funded Conservatives, Dies at 79," 23 Aug. 2019 David and his twin brother, William, were the youngest of four siblings. — Los Angeles Times, "David Koch, industrialist who funded conservatives, dies at 79," 23 Aug. 2019

Recent Examples on the Web: Verb

And the BFFs were totally twinning in oversize blazers and no pants (technically, Sophie was wearing shorts and a tee underneath. — Katherine J Igoe, Marie Claire, "Sophie Turner and Priyanka Chopra Are Twins in Oversize Blazers and No Pants," 30 Aug. 2019 In a photo posted to Instagram yesterday, Kate Hudson twinned with her adorable 10-month-old daughter, Rani Rose. — Chelsey Sanchez, Harper's BAZAAR, "Kate Hudson’s Daughter Rani Rose Looks So Grown Up in New Instagram Pics," 9 Aug. 2019 Scott Disick and Sofia Richie were twinning while heading out arm-in-arm in Capri ahead of Kylie Jenner‘s 22nd birthday bash. — Kaitlyn Frey, PEOPLE.com, "Scott Disick and Sofia Richie Wear Coordinating Looks Ahead of Kylie Jenner's Birthday Bash," 9 Aug. 2019 While both were otherworldly all on their own, the pair was clearly twinning from head to toe: naturally, both sported a version of Gucci’s famed loafers. — Vogue, "This Italian Power Couple Shutdown the Front Row at Gucci’s Cruise Show," 28 May 2019 Recent Instagrams show that he's been spending quality time in Italy with his kids Quincy, Christian, Chance, twins Jessie and D'Lila, and, yes, Justin. — Kayla Keegan, Good Housekeeping, "Lori Harvey Fans Are Blasting P. Diddy With Questions on Instagram After They Were Seen with Steve," 6 Aug. 2019 Matching in pajamas and robes by morning (and night), twinning in Hawaiian shirts by day. — Taylor Mead, House Beautiful, "Etsy Is Currently Selling Matching Hawaiian Shirts for You and Your Dog," 12 July 2019 For him as for most playwrights, the conjoint themes of society and self — twined in an embrace that is intimate yet suffocating — are the basis of all great theater. — Jesse Green, New York Times, "A Brief History of Gay Theater, in Three Acts," 26 Feb. 2018 The symbols in her paintings are often twinned, representing the separate journey and distance between her and her sister. — Darryl Ratcliff, Dallas News, "Latina artists in Dallas showcase 'were told ‘no,’ and they triumphed anyway’," 25 July 2019

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.