Instead of always commenting to resolve the ambiguity around the 'Free' in FOSS I feel we should instead use a different term. Say 'Modifiable'/'Liberal' Open Source Software ?
"Libre /ˈliːbrə/ is a loan word in English[citation needed], borrowed from French and Spanish, used to describe something as being "free", in the sense of "having freedom" or "liberty". It is used in English to distinguish the two meanings of free: free as in freedom (libre) from free as in free of charge (gratis). Another sample is common: Free as "Free Speech", not as "Free Drink"!" - https://en.wikipedia.org/wiki/Libre_(word)
But then the acronym will be 'LOSS' ..... enterprise managers would think twice before considering it ;).