dream vs ambition

dream and ambition both are nouns.

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

As nouns, dream and ambition are synonyms defined as:

Other synonyms of dream include aspiration.

dream (noun)	ambition (noun)
a series of mental images and emotions occurring during sleep	a strong drive for success
imaginative thoughts indulged in while awake	a cherished desire
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

dream (verb)	ambition (verb)
have a daydream; indulge in a fantasy	have as one's ambition
experience while sleeping