There are many ways to express the phrase "setting at liberty," which refers to setting someone free or releasing them from prison, bondage, or slavery. One synonym is "liberating," which implies a sudden and complete release from confinement. Another is "emancipating," which specifically refers to freeing someone from a state of servitude or oppression. "Discharging" is another option, which is particularly applicable to legal contexts. Other synonyms include "releasing," "unshackling," "unbinding," and "unfettering." Whatever word is chosen, the meaning is clear: to set someone at liberty is to give them back their freedom, and restore their sense of autonomy and sovereignty.