contract vs change

contract and change both are nouns.

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

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

contract: make or become more narrow or restricted
change: undergo a change; become different in essence; losing one's or its original nature

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

Other hypernyms of contract include alter, modify.

contract (noun)	change (noun)
a variety of bridge in which the bidder receives points toward game only for the number of tricks he bid	the action of changing something
a binding agreement between two or more persons that is enforceable by law	a different or fresh set of clothes
(contract bridge) the highest bid becomes the contract setting the number of tricks that the bidder must make	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

contract (verb)	change (verb)
be stricken by an illness, fall victim to an illness	undergo a change; become different in essence; losing one's or its original nature
make or become more narrow or restricted	cause to change; make different; cause a transformation
become smaller or draw together	become different in some particular way, without permanently losing one's or its former characteristics or essence
reduce in scope while retaining essential elements	change clothes; put on different clothes
compress or concentrate	exchange or replace with another, usually of the same kind or category
enter into a contractual arrangement	lay aside, abandon, or leave for another
make smaller	remove or replace the coverings of
squeeze or press together	become deeper in tone
engage by written agreement	change from one vehicle or transportation line to another
	give to, and receive from, one another