noun

twin

twin

He is my twin brother.

He is my twin brother.

She is one of a pair of twins.

She is one of a pair of twins.

a twin ((brother/sister/etc.)) a twin sibling He is my twin brother.

Synonyms: double, duplicate

From Old English 'twinn' (double), related to the word 'two'.

Think of the number 'two'. A twin is one of two siblings born at the same time.

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