twin

Definitions

Agriculture

  • noun one of two babies or animals born at the same time from two ova fertilised at the same time or from one ovum that splits in two

Medical

  • noun one of two babies born to a mother at the same time

Military

  • adjective fitted as a pair

Politics

  • verb to make a special arrangement between a town in one country and one of similar size or situation in another, involving visits between the two places

Origin & History of “twin”

Twin originally meant simply ‘double’, but the specific application to ‘two people born at the same birth’ had already evolved by the end of the Old English period. The word goes back via prehistoric Germanic *twisnaz to Indo-European *dwisno-, a derivative of the base *dwi- ‘double’ (other derivatives formed with the same -n suffix include English between and twine (OE) – etymologically thread of ‘two’ strands).
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