trouble vs can of worms

trouble and can of worms both are nouns.

Word	Noun	Adjective	Verb	Adverb
trouble	Yes	No	Yes	No
can of worms	Yes	No	No	No

As nouns, can of worms is a hyponym of trouble; that is, can of worms is a word with a more specific, narrower meaning than trouble:

Other hyponyms of trouble include pressure point, deep water, growing pains, hydra, matter.

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

trouble (verb)	can of worms (verb)
cause bodily suffering to and make sick or indisposed
disturb in mind or make uneasy or cause to be worried or alarmed
move deeply
to cause inconvenience or discomfort to
take the trouble to do something; concern oneself