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Showing results for identical twin. Search instead for Identical+Twins.
Synonyms

identical twin

American  

noun

  1. one of a pair of twins who develop from a single fertilized ovum and therefore have the same genotype, are of the same sex, and usually resemble each other closely.


Etymology

Origin of identical twin

First recorded in 1885–90

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

James Warren Whittaker was born on Feb. 10, 1929, in Seattle, 10 minutes before his identical twin brother, Louis.

From The Wall Street Journal • Apr. 15, 2026

People who disagree with him include his identical twin brother.

From The Wall Street Journal • Mar. 31, 2026

This is where identical twin brothers, medical doctors and BBC podcast hosts Dr Chris and Dr Xand van Tulleken come in.

From BBC • Jan. 4, 2026

Alexandra spent about five years writing her novel and sent several early drafts to her sisters, including Annabelle; Audrey, Annabelle’s identical twin; and 15-year-old Ames.

From Los Angeles Times • Aug. 28, 2025

I’d like to know how she’s done it, this trick with my brother that’s turned him into a stupider, more nervous identical twin of himself.

From "Cat's Eye" by Margaret Atwood

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