luck vs fortune

luck and fortune both are nouns.

Word	Noun	Adjective	Verb	Adverb
luck	Yes	No	No	No
fortune	Yes	No	No	No

As nouns, luck and fortune are synonyms defined as:

luck and fortune: an unknown and unpredictable phenomenon that causes an event to result one way rather than another

Other synonyms of luck include chance, hazard.

As nouns, luck and fortune are synonyms defined as:

luck and fortune: an unknown and unpredictable phenomenon that leads to a favorable outcome

As nouns, luck and fortune are synonyms defined as:

luck and fortune: your overall circumstances or condition in life (including everything that happens to you)

Other synonyms of luck include circumstances, destiny, fate, lot, portion.

luck (noun)	fortune (noun)
an unknown and unpredictable phenomenon that causes an event to result one way rather than another	an unknown and unpredictable phenomenon that causes an event to result one way rather than another
an unknown and unpredictable phenomenon that leads to a favorable outcome	an unknown and unpredictable phenomenon that leads to a favorable outcome
your overall circumstances or condition in life (including everything that happens to you)	a large amount of wealth or prosperity
	your overall circumstances or condition in life (including everything that happens to you)