noun 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.
My daughter, Johanna, wants to be a firefighter very much. She has a lot of ambition.
noun An object of an ardent desire.
My ambition is to own a helicopter.
noun A desire, as in (sense 1), for another person to achieve these things.
noun A personal quality similar to motivation, not necessarily tied to a single goal.
noun The act of going about to solicit or obtain an office, or any other object of desire; canvassing.
verb To seek after ambitiously or eagerly; to covet.