Thirteen
Thirteen noun - The cardinal number that is the sum of twelve and one.
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Synonyms for Thirteen
Xiii
Mutual synonyms
Both words in one sentence
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Note: This is not a repository for every time the number thirteen just happened to appear in history (we're looking at you, Apollo XIII and the thirteen stripes on the United States flag), this is for when writers use the number thirteen to denote something bad, or just really unusual.
Source: 13 Is Unlucky -
As a flip of the Christian symbolism applying to Sora, Organization XIII consists of thirteen Nobodies led by Xemnas as a Dark Messiah, and Roxas, the thirteenth member, betrays them.
Source: Franchise / Kingdom Hearts -
A music video made by the creators of 'Demyx Time' titled 'Consign to Oblivion' has all of Organization XIII(thirteen cosplayers in this case) doing a Power Walk near the end of the video.
Source: Power Walk
Cite this Source
Xiii and Thirteen. (2016). Retrieved 2026, July 27, from https://thesaurus.plus/related/thirteen/xiii
Thirteen & Xiii. N.p., 2016. Web. 27 Jul. 2026. <https://thesaurus.plus/related/thirteen/xiii>.
Xiii or Thirteen. 2016. Accessed July 27, 2026. https://thesaurus.plus/related/thirteen/xiii.
Google Ngram Viewer shows how "thirteen" and "xiii" have occurred on timeline