Definition of "jihad"

Young Iraqis of both sects obeyed the imams' ruling last week by rushing to conscription offices in hot, dirty, dusty Bagdad to offer themselves or their money for the jihad.

1938 August 22, “Holy War”, in Time

Small groups of killers, the scent of blood in their nostrils, now fanned out by taxi, bicycle or even on horseback into the surrounding countryside, spreading the word that a general jihad, or ‘holy war’, had broken out.

1977, Alistair Horne, A Savage War of Peace, New York: Review Books, published 2006, page 26

The Jabhat al-Nusra media, with songs about jihad and martyrdom, is extremely influential.

2013 May 8, Mona Mahmood, Ian Black, The Guardian

And now, the prophecy. One will come, the voice from the outer world, bringing the holy war, the jihad, which will cleanse the universe and bring us out of darkness.

1984, 41:18 from the start, in Dune‎ (Science Fiction), spoken by Reverend Mother Ramallo