divide vs disconnect

divide and disconnect both are nouns.

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

As verbs, disconnect is a hyponym of divide; that is, disconnect is a word with a more specific, narrower meaning than divide:

divide (noun)	disconnect (noun)
a ridge of land that separates two adjacent river systems	an unbridgeable disparity (as from a failure of understanding)
a serious disagreement between two groups of people (typically producing tension or hostility)

divide (verb)	disconnect (verb)
perform a division	make disconnected, disjoin or unfasten
move or break apart	pull the plug of (electrical appliances) and render inoperable
force, take, or pull apart
make a division or separation
separate into parts or portions
act as a barrier between; stand between