liberate

(verb) give equal rights to; of women and minorities. Synonyms: emancipate.

(verb) grant freedom to; free from confinement. Synonyms: free, release, unloose, unloosen, loose.

(verb) grant freedom to. Synonyms: set free. Example: "The students liberated their slaves upon graduating from the university."

(verb) release (gas or energy) as a result of a chemical reaction or physical decomposition. Synonyms: release, free.