passel vs slew

passel and slew both are nouns.

Word	Noun	Adjective	Verb	Adverb
passel	Yes	No	No	No
slew	Yes	No	Yes	No

As nouns, passel and slew are synonyms defined as:

passel and slew: (often followed by `of') a large number or amount or extent

passel (noun)	slew (noun)
(often followed by `of') a large number or amount or extent	(often followed by `of') a large number or amount or extent

passel (verb)	slew (verb)
	turn sharply; change direction abruptly
	move obliquely or sideways, usually in an uncontrolled manner