slew vs flock

slew and flock both are nouns.

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

As nouns, slew and flock are synonyms defined as:

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

slew (noun)	flock (noun)
(often followed by `of') a large number or amount or extent	a group of birds
	a group of sheep or goats
	a church congregation guided by a pastor
	an orderly crowd
	(often followed by `of') a large number or amount or extent

slew (verb)	flock (verb)
turn sharply; change direction abruptly	come together as in a cluster or flock
move obliquely or sideways, usually in an uncontrolled manner	move as a crowd or in a group