foul vs block

foul and block both are nouns.

Word	Noun	Adjective	Verb	Adverb
foul	Yes	Yes	Yes	No
block	Yes	No	Yes	No

As verbs, block is a hypernym of foul; that is, block is a word with a broader meaning than foul:

Other hypernyms of foul include close up, impede, jam, obstruct, obturate, occlude.

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

Other hyponyms of foul include gum up, choke up, lug, stuff, silt, silt up.

foul (noun)	block (noun)
an act that violates the rules of a sport	the act of obstructing or deflecting someone's movements
	a solid piece of something (usually having flat rectangular sides)
	an obstruction in a pipe or tube
	a simple machine consisting of a wheel with a groove in which a rope can run to change the direction or point of application of a force applied to the rope
	a metal casting containing the cylinders and cooling ducts of an engine
	a platform from which an auctioneer sells
	housing in a large building that is divided into separate units
	an inability to remember or think of something you normally can do; often caused by emotional tension
	a number or quantity of related things dealt with as a unit
	a rectangular area in a city surrounded by streets and usually containing several buildings
	(computer science) a sector or group of sectors that function as the smallest data unit permitted
	a three-dimensional shape with six square or rectangular sides

foul (adjective)	block (adjective)
(of a baseball) not hit between the foul lines
disgustingly dirty; filled or smeared with offensive matter
characterized by obscenity
(of a manuscript) defaced with changes
offensively malodorous
highly offensive; arousing aversion or disgust
especially of a ship's lines etc
violating accepted standards or rules

foul (verb)	block (verb)
become soiled and dirty	shape into a block or blocks
make unclean	shape by using a block
spot, stain, or pollute	prohibit the conversion or use of (assets)
make impure	be unable to remember
commit a foul; break the rules	interfere with or prevent the reception of signals
hit a foul ball	impede the movement of (an opponent or a ball)
become or cause to become obstructed	render unsuitable for passage
	obstruct
	stamp or emboss a title or design on a book with a block
	support, secure, or raise with a block
	block passage through
	shut out from view or get in the way so as to hide from sight
	interrupt the normal function of by means of anesthesia
	hinder or prevent the progress or accomplishment of
	stop from happening or developing
	run on a block system