noun

• A male given name from Dutch.
• (dated) A male given name from Hebrew
• A female given name.
• A male given name, equivalent to English John
• Abbreviation of January. [The first month of the Gregorian calendar, following the December of the previous year and preceding February. Abbreviation: Jan or Jan.]
• Obsolete form of jinn. [human-like beings, usually unseen by human eye, in opposition to al-ins]