unravel

US /ʌnˈræv.əl/
UK /ʌnˈræv.əl/
"unravel" picture
1.

undo (twisted, knitted, or woven threads)

:
She carefully unraveled the tangled yarn.
The sweater began to unravel at the seams.
2.

investigate and solve (a mystery or puzzle)

:
Detectives worked tirelessly to unravel the complex plot.
The journalist tried to unravel the truth behind the scandal.