(Arabic for “holy warrior” or a person who engages in “jihad”) In the late twentieth century, the term came to describe various armed fighters that subscribe to Islamist ideologies. According to some Islamic experts, jihad does not necessarily imply a military operation but a variety of actions done for God, including internal struggle with faith and sinful behavior. See also Jihad.  http://www.justvision.org/glossary/mujahid