deluge vs slew

deluge and slew both are nouns.

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

As nouns, slew is a hypernym of deluge; that is, slew is a word with a broader meaning than deluge:

deluge (noun)	slew (noun)
a heavy rain	(often followed by `of') a large number or amount or extent
the rising of a body of water and its overflowing onto normally dry land
an overwhelming number or amount

deluge (verb)	slew (verb)
fill or cover completely, usually with water	turn sharply; change direction abruptly
charge someone with too many tasks	move obliquely or sideways, usually in an uncontrolled manner
fill quickly beyond capacity; as with a liquid