Twin | Mean of twin in English Dictionary

/ˈtwɪn/

• Noun
• either one of two babies that are born at the same time to the same mother
1. She's the mother of twins.
2. The twins went swimming after lunch.
3. My sister just had twins.
4. Sarah and her brother are twins.
5. I didn't know she had a twin. [=a sister/brother who is her twin]
• either one of two similar things that form a pair
1. I found one glove but I can't find its twin. [=the other glove]
• made up of two similar things that are used together
1. a twin-engine airplane [=an airplane that has two engines]

• forming one of a pair of related or connected ideas or places
1. the twin goals of reducing oil dependence and protecting the environment
• Verb
• to bring (two things) together in close association
1. Research is twinned [=coupled] with technology.
2. They will be twinned [=paired] in the pages of history.
3. two cultures with a twinned destiny
• to form a relationship between (two towns in two countries)
1. Our town is twinned with a town of roughly the same size in France.