ne plus ultra vs dream

ne plus ultra and dream both are nouns.

Word	Noun	Adjective	Verb	Adverb
ne plus ultra	Yes	No	No	No
dream	Yes	No	Yes	No

As nouns, dream is a hyponym of ne plus ultra; that is, dream is a word with a more specific, narrower meaning than ne plus ultra:

Other hyponyms of ne plus ultra include couth, cultivation, culture, finish, polish, refinement, fare-thee-well, intactness, immaculacy.

ne plus ultra (noun)	dream (noun)
the state of being without a flaw or defect	a series of mental images and emotions occurring during sleep
	imaginative thoughts indulged in while awake
	a fantastic but vain hope (from fantasies induced by the opium pipe)
	a state of mind characterized by abstraction and release from reality
	a cherished desire
	someone or something wonderful

ne plus ultra (verb)	dream (verb)
	have a daydream; indulge in a fantasy
	experience while sleeping