* Φιλοτιμία (philotímia): This word is often cited as the closest equivalent, but it encompasses a broader range of meanings than simply ambition. It implies a strong sense of honor, self-respect, and striving for excellence, often in a way that benefits the community. It's more about striving for something noble than purely personal gain.
* Δίψα (dípsa): This means "thirst," and can be used metaphorically to describe a strong desire or ambition for something. It implies a powerful, almost insatiable yearning.
* Όρεξη (órexi): This word means "appetite" or "desire," and can also be used to describe ambition, particularly in the context of wanting to achieve something.
* Πρόθεση (próthesis): This translates to "intention" or "purpose," and can describe the ambitious goal itself, rather than the feeling of ambition.
* Αυταρέσκεια (autaréskeia): This implies self-seeking ambition, a desire for personal glory or advancement, which has a more negative connotation.
Therefore, the best translation depends heavily on the context. If you're aiming for a positive connotation similar to "noble ambition," φιλοτιμία (philotímia) is likely the closest. For a more general, neutral sense of ambition, δίψα (dípsa) or όρεξη (órexi) might be suitable. For negative ambition, αυταρέσκεια (autaréskeia) is appropriate.