ambition vs emulation

ambition and emulation both are nouns.

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

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

Other hyponyms of ambition include American Dream, nationalism.

ambition (noun)	emulation (noun)
a strong drive for success	effort to equal or surpass another
a cherished desire	(computer science) technique of one machine obtaining the same results as another
	ambition to equal or excel

ambition (verb)	emulation (verb)
have as one's ambition