- used to describe one of a pair of children who are twins
- a twin brother/sister
- twin daughters/sons
- twin boys/girls
- used to describe two things that are used as a pair
- a ship with twin propellers
- used to describe two things that are connected, or present or happening at the same time
- The prison service has the twin goals of punishment and rehabilitation.
Word Originlate Old English twinn ‘double’, from twi- ‘two’; related to Old Norse tvinnr. Current verb senses date from late Middle English.
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twin