slew vs tidy sum

slew and tidy sum both are nouns.

Word	Noun	Adjective	Verb	Adverb
slew	Yes	No	Yes	No
tidy sum	Yes	No	No	No

As nouns, slew and tidy sum are synonyms defined as:

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

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

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