set vs score

set and score both are nouns.

Word	Noun	Adjective	Verb	Adverb
set	Yes	Yes	Yes	No
score	Yes	No	Yes	No

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

set: a group of things of the same kind that belong together and are so used
score: a set of twenty members

set (noun)	score (noun)
several exercises intended to be done in series	the act of scoring in a game or sport
the act of putting something in position	a seduction culminating in sexual intercourse
representation consisting of the scenery and other properties used to identify the location of a dramatic production	a number or letter indicating quality (especially of a student's performance)
any electronic equipment that receives or transmits radio or tv signals	the facts about an actual situation
(psychology) being temporarily ready to respond in a particular way	a written form of a musical composition; parts for different instruments appear on separate staves on large pages
a relatively permanent inclination to react in a particular way	a resentment strong enough to justify retaliation
the descent of a heavenly body below the horizon	a set of twenty members
a group of things of the same kind that belong together and are so used	grounds
an unofficial association of people or groups	a number that expresses the accomplishment of a team or an individual in a game or contest
(mathematics) an abstract collection of numbers or symbols	a slight surface cut (especially a notch that is made to keep a tally)
the process of becoming hard or solid by cooling or drying or crystallization	an amount due (as at a restaurant or bar)
a unit of play in tennis or squash

set (adjective)	score (adjective)
set down according to a plan
being below the horizon
converted to solid form (as concrete)
fixed and unmoving
(usually followed by `to' or `for') on the point of or strongly disposed
situated in a particular spot or position
determined or decided upon as by an authority

set (verb)	score (verb)
arrange attractively	assign a grade or rank to, according to one's evaluation
produce fruit	make underscoring marks
alter or regulate so as to achieve accuracy or conform to a standard	gain points in a game
put into a certain state; cause to be in a certain state	get a certain number or letter indicating quality or performance
set to a certain position or cause to operate correctly	make small marks into the surface of
equip with sails or masts	induce to have sex
become gelatinous	write a musical score for
make ready or suitable or equip in advance for a particular purpose or for some use, event, etc
get ready for a particular purpose or event
fix conclusively or authoritatively
estimate
decide upon or fix definitely
establish as the highest level or best performance
urge to attack someone
put into a certain place or abstract location
fix in a border
give a fine, sharp edge to a knife or razor
insert (a nail or screw below the surface, as into a countersink)
put or set (seeds, seedlings, or plants) into the ground
put into a position that will restore a normal state
adapt for performance in a different way
locate
set in type
apply or start
disappear beyond the horizon