luscious vs lush

luscious is not a noun while lush is a noun.

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

As adjectives, luscious and lush are synonyms defined as:

Other synonyms of luscious include juicy, red-hot, toothsome, voluptuous.

luscious (noun)	lush (noun)
	a person who drinks alcohol to excess habitually

luscious (adjective)	lush (adjective)
having strong sexual appeal	produced or growing in extreme abundance
extremely pleasing to the sense of taste	tender and full of juice
	ostentatiously rich and superior in quality
	having strong sexual appeal