libre

Short definition from Wiktionary

Adjective

1. 1
   Especially of the will: free, independent, unconstrained.
2. 2
   With very few limitations on distribution or the right to access the source code to create improved versions, but not necessarily free of charge.
3. 3
   Not enslaved (of a black person in a French- or Spanish-colonized area, especially New Orleans).

Noun

1. 1
   A free (not enslaved) black person in a French- or Spanish-colonized area, especially New Orleans.