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English definition of “twin”

twin

noun [C] uk   /twɪn/ us  
B1 either of two children born to the same mother on the same occasion: My sister has twin sons. a twin sister one of two very similar things: The two countries are often regarded as economic twins.

twin

adjective [before noun] uk   /twɪn/ us  
used to describe two similar things that are a pair: twin towers a car with twin exhausts existing at the same time: his twin obsessions - women and cars

twin

verb uk   /twɪn/ UK us  
be twinned with If a town in one country is twinned with a town in another country, the two towns have a special relationship: Cambridge is twinned with Heidelberg.
(Definition of twin from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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