The Collaborative International Dictionary of English v.0.48:

Kinchinjunga \Kinchinjunga\ prop. n.
   same as Kanchenjunga.

   Syn: Kanchenjunga, Kanchanjanga.
        [WordNet 1.5]

WordNet (r) 3.0 (2006):

Kinchinjunga
    n 1: a mountain the Himalayas on the border between Nepal and
         Tibet (28,208 feet high) [syn: Kanchenjunga, Mount
         Kanchenjunga, Kanchanjanga, Kinchinjunga]