twinning

[ twin-ing ]

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.

Word History and Origins

Origin of twinning¹

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

Example Sentences

Twinning is a way of double-checking gold is present by drilling next to the place it has been found and taking rock samples.

From BBC

The twinning samples were sent off to two different labs, but the results came back the same - no traces of gold could be found.

From BBC

The contentious Trans Mountain expansion project involved “twinning” an existing crude oil pipeline that stretches from the outskirts of Edmonton, Alberta, to the Pacific Coast by Vancouver.

From Seattle Times

You can see it appealing to a writer’s desire for twinning themes, even if it also trivializes imbalanced vulnerabilities — one man’s literal survival against another’s bruised male ego — for the sake of extra tension in a wartime drama.

From Los Angeles Times

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