contract vs qualify

contract is a noun but qualify is not a noun.

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

As verbs, qualify is a hyponym of contract; that is, qualify is a word with a more specific, narrower meaning than contract:

contract: enter into a contractual arrangement
qualify: specify as a condition or requirement in a contract or agreement; make an express demand or provision in an agreement

Other hyponyms of contract include stipulate, sign, condition, specify, stipulate, lease, rent, charter, hire, lease, rent.

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

contract (verb)	qualify (verb)
be stricken by an illness, fall victim to an illness	make fit or prepared
make or become more narrow or restricted	add a modifier to a constituent
become smaller or draw together	make more specific
reduce in scope while retaining essential elements	specify as a condition or requirement in a contract or agreement; make an express demand or provision in an agreement
compress or concentrate	describe or portray the character or the qualities or peculiarities of
enter into a contractual arrangement	pronounce fit or able
make smaller	prove capable or fit; meet requirements
squeeze or press together
engage by written agreement