sign vs set

sign and set both are nouns.

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

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

Other hypernyms of sign include lay, place, pose, position, put.

sign (noun)	set (noun)
structure displaying a board on which advertisements can be posted	several exercises intended to be done in series
a public display of a message	the act of putting something in position
a gesture that is part of a sign language	representation consisting of the scenery and other properties used to identify the location of a dramatic production
any nonverbal action or gesture that encodes a message	any electronic equipment that receives or transmits radio or tv signals
a character indicating a relation between quantities	(psychology) being temporarily ready to respond in a particular way
a perceptible indication of something not immediately apparent (as a visible clue that something has happened)	a relatively permanent inclination to react in a particular way
a fundamental linguistic unit linking a signifier to that which is signified	the descent of a heavenly body below the horizon
an event that is experienced as indicating important things to come	a group of things of the same kind that belong together and are so used
(astrology) one of 12 equal areas into which the zodiac is divided	an unofficial association of people or groups
having an indicated pole (as the distinction between positive and negative electric charges)	(mathematics) an abstract collection of numbers or symbols
(medicine) any objective evidence of the presence of a disorder or disease	the process of becoming hard or solid by cooling or drying or crystallization
	a unit of play in tennis or squash

sign (adjective)	set (adjective)
used of the language of the deaf	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

sign (verb)	set (verb)
be engaged by a written agreement	arrange attractively
communicate silently and non-verbally by signals or signs	produce fruit
mark with one's signature; write one's name (on)	alter or regulate so as to achieve accuracy or conform to a standard
make the sign of the cross over someone in order to call on God for protection; consecrate	put into a certain state; cause to be in a certain state
communicate in sign language	set to a certain position or cause to operate correctly
place signs, as along a road	equip with sails or masts
approve and express assent, responsibility, or obligation	become gelatinous
engage by written agreement	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