discrepancy vs leeway

discrepancy and leeway both are nouns.

Word	Noun	Adjective	Verb	Adverb
discrepancy	Yes	No	No	No
leeway	Yes	No	No	No

As nouns, leeway is a hyponym of discrepancy; that is, leeway is a word with a more specific, narrower meaning than discrepancy:

discrepancy: a difference between conflicting facts or claims or opinions
leeway: a permissible difference; allowing some freedom to move within limits

Other hyponyms of discrepancy include allowance, margin, tolerance.

discrepancy (noun)	leeway (noun)
a difference between conflicting facts or claims or opinions	a permissible difference; allowing some freedom to move within limits
an event that departs from expectations	(of a ship or plane) sideways drift