THESAURUS
untie
cast off, detach, disembarrass, disembroil, disencumber, disengage, disentangle, doff, free, liberate, loose, loosen, release, remove, take off, unbar, unbind, unbolt, unbridle, unbuckle, unbutton, uncage, unchain, unclasp, undo, unfasten, unfetter, ungag, unglue, unhandcuff, unhobble, unlace, unlash, unlatch, unleash, unlock, unloose, unloosen, unmanacle, unmuzzle, unpen, unpinion, unscramble, unshackle, unstick, unstrap, untangle, untether, untruss, untwine, unyoke, weigh anchor
ROGET THESAURUS
untie
Liberation
VB
liberate, free, set free, set clear, set at liberty, render free, emancipate, release, enfranchise, affranchise, manumit, enlarge, disband, discharge, disenthrall, disenthral, dismiss, let go, let loose, loose, let out, let slip, cast adrift, turn adrift, deliver, absolve, unfetter &c,
untie, loose, loosen, relax, unbolt, unbar, unclose, uncork, unclog, unhand, unbind, unchain, unharness, unleash, disengage, disentangle, clear, extricate, unloose, gain one's liberty, obtain one's liberty, acquire one's liberty, get rid of, get clear of, deliver oneself from, shake off the yoke, slip the collar, break loose, break prison, tear asunder one's bonds, cast off trammels, escape.