WordNet (r) 3.0 (2006):

JI
    n 1: a clandestine group of southeast Asian terrorists organized
         in 1993 and trained by al-Qaeda; supports militant Muslims
         in Indonesia and the Philippines and has cells in Singapore
         and Malaysia and Indonesia [syn: Jemaah Islamiyah, JI,
         Islamic Group, Islamic Community, Malaysian Mujahidin
         Group, Malaysia Militant Group]