(uncountable, countable) Eager or inordinate desire for some object that confers distinction, as preferment, honor, superiority, political power, or fame; desire to distinguish one's self from other people.

(countable) An object of an ardent desire.

A desire, as in (sense 1), for another person to achieve these things.

(uncountable) A personal quality similar to motivation, not necessarily tied to a single goal.

To seek after ambitiously or eagerly; to covet.