whether free correctly represents freedom
To complete the literal analysis of "free", we may look into the meaning of "freedom" also.
Freedom is the noun form of the adjective free. Freedom is derived from free.
Freedom, originally meant free, exempt from, not in bondage, noble, and joyful. The OED gives "freedom" the sense of personal liberty, non-slavery, civil liberty, liberty of action, right to do, and unrestricted use.
Through free software, we have the freedom to make unrestricted use of software. Through this freedom, it is possible to enjoy our other freedoms with less effort.
Richard Stallman, had made it very clear, that FSF and GNU consider ''free' as most suitable adjective for 'freedom' in English. He also stated that it is not possible to change the usage 'Free Software' as it is propogated by FSF and GNU for a long time now.
These arguments are acceptable.
Of course, without any doubt.
However to convey it properly, the usage 'Free Software' should be accompany with an explanation for that usage.
The whole point is that there is little need to explain the correct and proper usage by the free software movement. What is needed is curtailment of the abuse of the word "free" by proprietary software entities.
After all, the messages conveyed does matter, not the words used.
When the words we use exactly fit and match our matter at hand, our joy doubles.