bad luck vs gutter

bad luck and gutter both are nouns.

Word	Noun	Adjective	Verb	Adverb
bad luck	Yes	No	No	No
gutter	Yes	No	Yes	No

As nouns, gutter is a hyponym of bad luck; that is, gutter is a word with a more specific, narrower meaning than bad luck:

Other hyponyms of bad luck include weakness, adversity, hard knocks, hardship, sewer, toilet, hard cheese.

bad luck (noun)	gutter (noun)
unnecessary and unforeseen trouble resulting from an unfortunate event	a channel along the eaves or on the roof; collects and carries away rainwater
an unpredictable outcome that is unfortunate	a tool for gutting fish
an unfortunate state resulting from unfavorable outcomes	a worker who guts things (fish or buildings or cars etc.)
	misfortune resulting in lost effort or money

bad luck (verb)	gutter (verb)
	provide with gutters
	wear or cut gutters into
	flow in small streams
	burn unsteadily, feebly, or low; flicker