Skip to main content


twin / twin/ • n. 1. one of two children or animals born at the same birth. ∎  a person or thing that is exactly like another: there was a bruise on his cheek, a twin to the one on mine. ∎  (the Twins) the zodiacal sign or constellation Gemini. 2. something containing or consisting of two matching or corresponding parts, in particular: ∎  a twin-bedded room. ∎  a twin-engined aircraft. ∎  a twinned crystal. • adj. forming, or being one of, a pair born at one birth: she gave birth to twin boys her twin sister. ∎  forming a matching, complementary, or closely connected pair: the twin problems of economic failure and social disintegration. ∎  Bot. growing in pairs: twin seed leaves. ∎  (of a bedroom) containing two single beds. ∎  (of a crystal) twinned. • v. (twinned , twin·ning ) [tr.] (usu. be twinned) link; combine: the company twinned its core business of brewing with that of distilling.

Cite this article
Pick a style below, and copy the text for your bibliography.

  • MLA
  • Chicago
  • APA

"twin." The Oxford Pocket Dictionary of Current English. . 18 Aug. 2019 <>.

"twin." The Oxford Pocket Dictionary of Current English. . (August 18, 2019).

"twin." The Oxford Pocket Dictionary of Current English. . Retrieved August 18, 2019 from

Learn more about citation styles

Citation styles gives you the ability to cite reference entries and articles according to common styles from the Modern Language Association (MLA), The Chicago Manual of Style, and the American Psychological Association (APA).

Within the “Cite this article” tool, pick a style to see how all available information looks when formatted according to that style. Then, copy and paste the text into your bibliography or works cited list.

Because each style has its own formatting nuances that evolve over time and not all information is available for every reference entry or article, cannot guarantee each citation it generates. Therefore, it’s best to use citations as a starting point before checking the style against your school or publication’s requirements and the most-recent information available at these sites:

Modern Language Association

The Chicago Manual of Style

American Psychological Association

  • Most online reference entries and articles do not have page numbers. Therefore, that information is unavailable for most content. However, the date of retrieval is often important. Refer to each style’s convention regarding the best way to format page numbers and retrieval dates.
  • In addition to the MLA, Chicago, and APA styles, your school, university, publication, or institution may have its own requirements for citations. Therefore, be sure to refer to those guidelines when editing your bibliography or works cited list.