come vs change

come and change both are nouns.

Word	Noun	Adjective	Verb	Adverb
come	Yes	No	Yes	No
change	Yes	No	Yes	No

As verbs, change is a hypernym of come; that is, change is a word with a broader meaning than come:

come: reach or enter a state, relation, condition, use, or position
change: undergo a change; become different in essence; losing one's or its original nature

come (noun)	change (noun)
the thick white fluid containing spermatozoa that is ejaculated by the male genital tract	the action of changing something
	a different or fresh set of clothes
	a thing that is different
	a difference that is usually pleasant
	an event that occurs when something passes from one state or phase to another
	the result of alteration or modification
	coins of small denomination regarded collectively
	the balance of money received when the amount you tender is greater than the amount due
	money received in return for its equivalent in a larger denomination or a different currency
	a relational difference between states; especially between states before and after some event

come (verb)	change (verb)
come to pass; arrive, as in due course	undergo a change; become different in essence; losing one's or its original nature
be found or available	cause to change; make different; cause a transformation
reach or enter a state, relation, condition, use, or position	become different in some particular way, without permanently losing one's or its former characteristics or essence
happen as a result	change clothes; put on different clothes
have a certain priority	exchange or replace with another, usually of the same kind or category
come to one's mind; suggest itself	lay aside, abandon, or leave for another
move toward, travel toward something or somebody or approach something or somebody	remove or replace the coverings of
be received	become deeper in tone
cover a certain distance	change from one vehicle or transportation line to another
reach a destination; arrive by movement or progress	give to, and receive from, one another
experience orgasm
come under, be classified or included
proceed or get along
extend or reach
to be the product or result
exist or occur in a certain point in a series
be a native of
to measure up to in kind or quality
add up in number or quantity
come forth
come from; be connected by a relationship of blood, for example