Anything that is necessary for or that provides something that is necessary for sustaining life.

plural of ur-source

An original source.

Alternative form of crowdsource

plural of data source

Alternative spelling of datasource

(software) Whose source code can be viewed, and in some cases modified, but which itself is not open-source.

Alternative form of InnerSource / Used other than figuratively or idiomatically: see inner, source.

An original document that is subsequently copied, translated, or transcribed.

plural of second source