"WDC" is Wired and Wireless Dictionary (or the Weird network Dictionary). 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 viewers on Unix and the other OS (e.g. Windows or MacOS). o URL for WDIC: http://www.wdic.org/ o URL for this converted dictionary: