drunk vs lush

drunk and lush both are nouns.

Word	Noun	Adjective	Verb	Adverb
drunk	Yes	Yes	No	No
lush	Yes	Yes	No	No

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

Other hyponyms of drunk include alcoholic, alky, boozer, dipsomaniac, soaker, souse.

drunk (noun)	lush (noun)
a chronic drinker	a person who drinks alcohol to excess habitually
someone who is intoxicated

drunk (adjective)	lush (adjective)
stupefied or excited by a chemical substance (especially alcohol)	produced or growing in extreme abundance
as if under the influence of alcohol	tender and full of juice
	ostentatiously rich and superior in quality
	having strong sexual appeal