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how about Gratis or Para libre
As in "without cost", it is "gratis". As in "having liberty", it is "libre".
"La libertad no es gratis" means "freedom is not free".
without charge - gratis/gratuito(a)(s)
without restrictions of use - libre(s)
Free has several meanings:
Doesn't cost anything? gratis
No one is sitting here? no está ocupado
Free relating to freedom? libre
Libre ('to breake free') or gratis('free of charge') or sin (e.g. 'sin azúcar' = 'sugar free').
In Spanish, "free" is "gratis." In French, it is "gratuit." In German, it is "frei."