jihad
/dʒɪˈhɑːd
/(also jehad)
noun Islam
1 (also lesser jihad) A struggle or fight against the enemies of Islam: he declared a jihad against the infidels [mass noun]: the importance of jihad as a uniting force
1.1 (also greater jihad) The spiritual struggle within oneself against sin.
Origin
from Arabic jihād, literally 'effort', expressing, in Muslim thought, struggle on behalf of God and Islam.