revery vs dream

revery and dream both are nouns.

Word	Noun	Adjective	Verb	Adverb
revery	Yes	No	No	No
dream	Yes	No	Yes	No

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

revery: an abstracted state of absorption
dream: a state of mind characterized by abstraction and release from reality

Other hyponyms of revery include brown study.

As nouns, dream is a hypernym of revery; that is, dream is a word with a broader meaning than revery:

Other hypernyms of revery include dreaming.

revery (noun)	dream (noun)
an abstracted state of absorption	a series of mental images and emotions occurring during sleep
absentminded dreaming while awake	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

revery (verb)	dream (verb)
	have a daydream; indulge in a fantasy
	experience while sleeping