Unlink vs Uncouple - What's the difference?

As verbs the difference between unlink and uncouple

is that unlink is to decouple an item; to remove a link; to delink while uncouple is to disconnect or detach one thing from another.

is (math|knot theory) a link that is equivalent (under ambient isotopy) to finitely many disjoint circles in the plane.

(wikipedia unlink)

(en verb)

To decouple an item; to remove a link; to delink.

(transitive, computing, Unix) To delete a file.

(en noun)

(math, knot theory) A link that is equivalent (under ambient isotopy) to finitely many disjoint circles in the plane.

(uncoupl)

To disconnect or detach one thing from another.

* We uncoupled the trailer and left it behind

To come loose.

To loose, as dogs, from their couples.