@bortzmeyer I find FOSS usually encapsulates the message well enough for most people I speak to. Sometimes I have to explain the acronym but that's OK. It gives the oppertunity to explain the nuances and subtleties for software licensing. If open source means only access to those in industry, that is another argument for using FOSS. While it is an acronym it is more specific and leaves less room for ambiguity. Of course if industry overloads the acronym to mean something else there is trouble.