To remove an impediment that obstructs the passage of (someone or something).
To remove a prohibition.
To unlock or unbolt a door that had been locked or bolted with a bar.
To free (someone or something) from a constraint; (figuratively) to release (something which has been suppressed, such as emotions or objectionable things).
To loosen or undo (something that entangles, fastens, holds, or interlocks).
To relax or slacken (something that clasps or grips, such as the arms or hands).
To become loose or come off.
To free from a constraint.