back up vs foul

foul vs back up

back up is not a noun while foul is a noun.

back up is not an adjective while foul is an adjective.

back up and foul both are verbs.

Word	Noun	Adjective	Verb	Adverb
back up	No	No	Yes	No
foul	Yes	Yes	Yes	No

As verbs, back up and foul are synonyms defined as:

back up and foul: become or cause to become obstructed

Other synonyms of back up include choke, choke off, clog, clog up, congest, crap up.

back up (noun)	foul (noun)
	an act that violates the rules of a sport

back up (adjective)	foul (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

back up (verb)	foul (verb)
establish as valid or genuine	become soiled and dirty
become or cause to become obstructed	make unclean
make a copy of (a computer file) especially for storage in another place as a security copy	spot, stain, or pollute
move backwards from a certain position	make impure
give moral or psychological support, aid, or courage to	commit a foul; break the rules
	hit a foul ball
	become or cause to become obstructed

Difference between back up and foul

Words related to "foul"

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