The term for a fear of the number 13 is "triskaidekaphobia." This superstition is widespread in various cultures, often associated with negative connotations and beliefs surrounding the number. In some areas, the fear is so potent that buildings may skip a 13th floor or airlines avoid having a row numbered 13. Historical explanations point to religious or cultural origins, linking the number to ill-fated events or figures, such as the Last Supper's account of Judas Iscariot being the 13th guest. Overcoming this fear may involve understanding its irrational roots and recontextualizing the number's significance.