Twinning

Twinning (making a twin of) may refer to:

In biology and agriculture, producing two offspring (i.e., twins) at a time, or having a tendency to do so;
Twin towns and sister cities, towns and cities involved in town twinning
Twinning institutional building tool
eTwinning, a collaboration in which two schools in different locations are paired and communicate using the internet
Twinning (roads), construction of one road next to another
In crystallography, crystal twinning refers to intergrown crystal forms that display a twin boundary
In film, special effects that multiply the presence of the same actor or actress on screen
In animation, twinning refers to when two parts on opposite sides of a character's body move the same way
A type of transnational education in which a student does part of their degree course in a local private college and part of it in an overseas institution tied to the college

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