unplug vs undo

unplug and undo both are verbs.

Word	Noun	Adjective	Verb	Adverb
unplug	No	No	Yes	No
undo	No	No	Yes	No

As verbs, undo is a hypernym of unplug; that is, undo is a word with a broader meaning than unplug:

unplug (verb)	undo (verb)
pull the plug of (electrical appliances) and render inoperable	cancel, annul, or reverse an action or its effect
	cause to become loose
	remove the outer cover or wrapping of
	deprive of certain characteristics
	cause the ruin or downfall of