twinning

American  

[twin-ing] / ˈtwɪn ɪŋ /

noun

1. the bearing of two children at one birth.

2. the coupling of two persons or things; union.

3. Crystallography. the union of crystals to form a twin.

4. an act or instance of matching or resembling someone or something in a specific way, and the acknowledgment of this resemblance (often used attributively): I love those twinning outfits.

   accidental twinning;

   I love those twinning outfits.

   Look at their twinning duckfaces.

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Etymology

Origin of twinning

First recorded in 1565–75; twin ¹ + -ing ¹

Example Sentences

But all those efforts at twinning are a bit futile.

From The Wall Street Journal • Oct. 31, 2025

In 1980, he was involved in flying the Palestinian flag from the offices of Dundee Council, and was involved in the twinning of Dundee with the West Bank town of Nablus.

From BBC • Mar. 1, 2024

Because two to three weeks after conception, twinning might occur.

From Washington Post • May 18, 2022

Jessica Beck, a curator at the Andy Warhol Museum in Pittsburgh, came up with the idea of twinning the artists as a way of reintroducing Marisol and showing the overlap of ideas and influence.

From New York Times • Apr. 27, 2022

His spirit, depleted by his own depredations, pulsed too fast through his veins, twinning with a whirr and discordant jangle of...of disbelief crashing against evidence, producing a sensation of disfaith.

From "Strange the Dreamer" by Laini Taylor