Actually the term you are looking for is Mujahid (singular) and Mujahideen (plural). However, a true Jihad is a declaration of war for all Muslims and can only be created by the Caliph and the last Caliphate was abandoned in 1923. There has not been a true Jihad since then. While the current perpetrators of violence would like to believe they are Mujahideen, they are not. This is not, and can never be a true Jihad, since war has not been declared by the Caliph and the current violence is only being perpetrated by a small percentage of Muslims. These people are terrorists, pure and simple.