disturb vs trouble

disturb is not a noun while trouble is a noun.

Word	Noun	Adjective	Verb	Adverb
disturb	No	No	Yes	No
trouble	Yes	No	Yes	No

As verbs, disturb and trouble are synonyms defined as:

Other synonyms of disturb include upset.

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

disturb (noun)	trouble (noun)
	an effort that is inconvenient
	a source of difficulty
	an event causing distress or pain
	an angry disturbance
	a strong feeling of anxiety
	an unwanted pregnancy

disturb (verb)	trouble (verb)
destroy the peace or tranquility of	cause bodily suffering to and make sick or indisposed
damage as if by shaking or jarring	disturb in mind or make uneasy or cause to be worried or alarmed
tamper with	move deeply
change the arrangement or position of	to cause inconvenience or discomfort to
move deeply	take the trouble to do something; concern oneself