Rewind vs. Unwind

Difference Between Rewind and Unwind
Rewindverb
To wind (something) again.
Unwindverb
(transitive) To separate (something that is wound up)
to unwind a ball of yarnCould you unwind about a foot of ribbon so I can finish the package?Rewindverb
To wind (something) back, now especially of cassette or video tape, CD, DVD etc.; to go back on a video or audio recording.
Unwindverb
To disentangle
Rewindverb
(figurative) To go back or think back to a previous moment or place, or a previous point in a discourse.
Unwindverb
To relax; to chill out; to rest and relieve of stress
After work, I like to unwind by smoking a pipe while reading the paper.Rewindnoun
The act of rewinding.
Unwindverb
(intransitive) To be or become unwound; to be capable of being unwound or untwisted.
Rewindnoun
A button or other mechanism for rewinding.
I meant to pause the picture, but hit the rewind by mistake.Unwindverb
To undo something.
Unwindverb
To analyse (a call stack) so as to generate a stack trace etc.
Unwindnoun
Any mechanism or operation that unwinds something.
Unwindverb
reverse the winding or twisting of;
unwind a ball of yarnUnwindverb
separate the tangles of
Unwindverb
become less tense, rest, or take one's ease;
He relaxed in the hot tubLet's all relax after a hard day's workUnwindverb
cause to feel relaxed;
A hot bath always relaxes me