set vs start

set and start both are nouns.

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

As verbs, start is a hypernym of set; that is, start is a word with a broader meaning than set:

Other hypernyms of set include initiate, originate.

set (noun)	start (noun)
several exercises intended to be done in series	the act of starting something
the act of putting something in position	a sudden involuntary movement
representation consisting of the scenery and other properties used to identify the location of a dramatic production	a turn to be a starter (in a game at the beginning)
any electronic equipment that receives or transmits radio or tv signals	the advantage gained by beginning early (as in a race)
(psychology) being temporarily ready to respond in a particular way	a signal to begin (as in a race)
a relatively permanent inclination to react in a particular way	the beginning of anything
the descent of a heavenly body below the horizon	a line indicating the location of the start of a race or a game
a group of things of the same kind that belong together and are so used	the time at which something is supposed to begin
an unofficial association of people or groups
(mathematics) an abstract collection of numbers or symbols
the process of becoming hard or solid by cooling or drying or crystallization
a unit of play in tennis or squash

set (adjective)	start (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)	start (verb)
arrange attractively	take the first step or steps in carrying out an action
produce fruit	set in motion, cause to start
alter or regulate so as to achieve accuracy or conform to a standard	play in the starting lineup
put into a certain state; cause to be in a certain state	bring into being
set to a certain position or cause to operate correctly	get off the ground
equip with sails or masts	begin or set in motion
become gelatinous	get going or set in motion
make ready or suitable or equip in advance for a particular purpose or for some use, event, etc	depart for someplace
get ready for a particular purpose or event	bulge outward
fix conclusively or authoritatively	move or jump suddenly, as if in surprise or alarm
estimate	begin work or acting in a certain capacity, office or job
decide upon or fix definitely	begin an event that is implied and limited by the nature or inherent function of the direct object
establish as the highest level or best performance	have a beginning, in a temporal, spatial, or evaluative sense
urge to attack someone	have a beginning characterized in some specified way
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