leeway vs discrepancy

leeway and discrepancy both are nouns.

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

As nouns, discrepancy is a hypernym of leeway; that is, discrepancy is a word with a broader meaning than leeway:

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

Other hypernyms of leeway include disagreement, divergence, variance.

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