WordNet (r) is a lexical database for english from the Cognitive
Science Laboratory at Princeton University.  This is a dictionary
converted from the original one into JIS X 4081 format (that is a
subset of EPWING V1) by FreePWING. So it can be used by EPWING viewer
on Unix and the other OS (e.g. Windows or MacOS).  URL for this
converted dictionary is

WWW: http://openlab.ring.gr.jp/edict/fpw/