struggle vs scuffle

struggle and scuffle both are nouns.

Word	Noun	Adjective	Verb	Adverb
struggle	Yes	No	Yes	No
scuffle	Yes	No	Yes	No

As nouns, scuffle is a hyponym of struggle; that is, scuffle is a word with a more specific, narrower meaning than struggle:

Other hyponyms of struggle include duel, scramble, joust, tilt.

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

struggle (noun)	scuffle (noun)
strenuous effort	disorderly fighting
an energetic attempt to achieve something	an unceremonious and disorganized struggle
an open clash between two opposing groups (or individuals)	a hoe that is used by pushing rather than pulling

struggle (verb)	scuffle (verb)
be engaged in a fight; carry on a fight	fight or struggle in a confused way at close quarters
to exert strenuous effort against opposition	walk by dragging one's feet
climb awkwardly, as if by scrambling
make a strenuous or labored effort