unravel

(transitive) To cause (something) to no longer be ravelled or tangled; to disentangle, to untangle.
(transitive) To separate the threads of (something knitted or woven, such as clothing or fabric).
(figuratively, transitive) To separate the connected or united parts of (something); to throw (something) into disorder; to confound, to confuse, to disintegrate.
(also, figuratively, reflexive, transitive) To clear (something) from complication or difficulty; to investigate and solve (a mystery, a problem, etc.); to disentangle, to unfold, to work out.
(figuratively, obsolete, transitive) To reverse or undo (something); to annul, to negate.
(intransitive) To become no longer ravelled or tangled.
(intransitive) Of threads: to become separated from something knitted or woven, such as clothing or fabric; also, of something knitted or woven: to separate into threads; to come apart.
(figuratively, intransitive) Of a thing: to have its connected or united parts separated; to be thrown into disorder; to become confused or undone; to collapse.