MuharramPronunciation: /məˈhʌrəm/Definition of Muharram noun the first month of the year in the Islamic calendar. an annual celebration in the month of Muharram commemorating the death of Husayn, grandson of Muhammad, and his retinue. Origin:from Arabic muḥarram 'inviolable'Muharram in other Oxford dictionaries Definition of Muharram in the US English dictionary