'Jihad' definitions:

Definition of 'jihad'

From: WordNet
noun
A holy war waged by Muslims against infidels [syn: jihad, jehad, international jihad]
noun
A holy struggle or striving by a Muslim for a moral or spiritual or political goal [syn: jihad, jehad]

Definition of 'Jihad'

From: GCIDE
  • Jihad \Ji*had"\, Jehad \Je*had"\, n. [Ar. jih[=a]d.] (Moham.) A religious war against infidels or Mohammedan heretics; also, any bitter war or crusade for a principle or belief.
  • [Their] courage in war . . . had not, like that of the Mohammedan dervishes of the Sudan, or of Mohammedans anywhere engaged in a jehad, a religious motive and the promise of future bliss behind it. --James Bryce. [Webster 1913 Suppl.]