contract vs fret

contract and fret both are nouns.

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

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

Other hyponyms of contract include choke, strangle, prim, astringe, strangulate, convulse, convulse, bear down, overbear, choke, gag, choke, scrag.

contract (noun)	fret (noun)
a variety of bridge in which the bidder receives points toward game only for the number of tricks he bid	a small bar of metal across the fingerboard of a musical instrument; when the string is stopped by a finger at the metal bar it will produce a note of the desired pitch
a binding agreement between two or more persons that is enforceable by law	an ornamental pattern consisting of repeated vertical and horizontal lines (often in relief)
(contract bridge) the highest bid becomes the contract setting the number of tricks that the bidder must make	a spot that has been worn away by abrasion or erosion
	agitation resulting from active worry

contract (verb)	fret (verb)
be stricken by an illness, fall victim to an illness	wear away or erode
make or become more narrow or restricted	remove soil or rock
become smaller or draw together	cause friction
reduce in scope while retaining essential elements	be too tight; rub or press
compress or concentrate	decorate with an interlaced design
enter into a contractual arrangement	carve a pattern into
make smaller	be agitated or irritated
squeeze or press together	cause annoyance in
engage by written agreement	gnaw into; make resentful or angry
	worry unnecessarily or excessively
	become or make sore by or as if by rubbing
	provide (a musical instrument) with frets