ambition vs want

ambition and want both are nouns.

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

As verbs, want is a hypernym of ambition; that is, want is a word with a broader meaning than ambition:

Other hypernyms of ambition include desire.

ambition (noun)	want (noun)
a strong drive for success	a specific feeling of desire
a cherished desire	anything that is necessary but lacking
	a state of extreme poverty
	the state of needing something that is absent or unavailable

ambition (verb)	want (verb)
have as one's ambition	wish or demand the presence of
	have need of
	hunt or look for; want for a particular reason
	feel or have a desire for; want strongly
	be without, lack; be deficient in