The word "unhandcuff" refers to the act of removing someone from handcuffs or freeing them from physical restraints. There are several synonyms that can be used in place of "unhandcuff," including "unfetter," "unbind," "untie," "release," and "liberate." Each of these terms indicates a similar process of release or freedom from confinement. "Unfetter" suggests removing the chains or shackles that hold someone back, while "unbind" implies removing any kind of constraint or restriction. "Untie" specifically refers to the act of undoing knots or untying something that is keeping someone restrained. "Release" and "liberate" both suggest a general sense of freedom and escape from confinement.