1. <software> A software source tree packaged for distribution but see kit. 2. ssaging> A vague term encompassing mailing lists and Usenetnewsgroups (but not BBsfora) any topic-oriented message channel with multiple recipients. 3. ssaging> An information-space domain (usually loosely correlated with geography) to which propagation of a Usenet message is restricted a much-underused feature. [Jargon File]