disconnect vs unplug

disconnect is a noun but unplug is not a noun.

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

As verbs, disconnect and unplug are synonyms defined as:

disconnect and unplug: pull the plug of (electrical appliances) and render inoperable

disconnect (noun)	unplug (noun)
an unbridgeable disparity (as from a failure of understanding)

disconnect (verb)	unplug (verb)
make disconnected, disjoin or unfasten	pull the plug of (electrical appliances) and render inoperable
pull the plug of (electrical appliances) and render inoperable