Since the advent of the free software movement, these terms have entered frequent use, for categorising computer programs according to the licenses and legal fetters which cover them. The expression "free as in freedom" is also the title of a 2002 biography of Richard Stallman, founder of the Free Software Foundation.
In French (and other Latin and shemic languages), the distinction is simpler, because the word free can be translated as gratuit (no cost, gratis in Latin) or libre (free of restrictions).
To some people (outside the particular context of software), "free beer" can imply free riding, or freeloading taking advantage of something that is not paid for.