contract vs condition

contract and condition both are nouns.

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

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

contract: enter into a contractual arrangement
condition: 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, qualify, specify, stipulate, lease, rent, charter, hire, lease, rent.

contract (noun)	condition (noun)
a variety of bridge in which the bidder receives points toward game only for the number of tricks he bid	information that should be kept in mind when making a decision
a binding agreement between two or more persons that is enforceable by law	the procedure that is varied in order to estimate a variable's effect by comparison with a control condition
(contract bridge) the highest bid becomes the contract setting the number of tricks that the bidder must make	an assumption on which rests the validity or effect of something else
	(usually plural) a statement of what is required as part of an agreement
	a state at a particular time
	a mode of being or form of existence of a person or thing
	the state of (good) health (especially in the phrases `in condition' or `in shape' or `out of condition' or `out of shape')
	an illness, disease, or other medical problem

contract (verb)	condition (verb)
be stricken by an illness, fall victim to an illness	apply conditioner to in order to make smooth and shiny
make or become more narrow or restricted	put into a better state
become smaller or draw together	specify as a condition or requirement in a contract or agreement; make an express demand or provision in an agreement
reduce in scope while retaining essential elements	develop (a child's or animal's) behavior by instruction and practice; especially to teach self-control
compress or concentrate	establish a conditioned response
enter into a contractual arrangement
make smaller
squeeze or press together
engage by written agreement