to cause (something) to become free from complications or confusion
unwind, disconnect; solve
stretched out
spread
(to cause something) to become straight; to remove bends or curves in something
put in neat or aligned order
to open out (clothes etc); (to cause something) to become known or visible
spread out
(to cause a ball of wood, a knot etc) to become a straight piece, without twists; (of a person) to relax after a period of tension, exhausting work etc
undo, untangle
of unwind
undo, untangle