ballpark vs ambit

ballpark and ambit both are nouns.

Word	Noun	Adjective	Verb	Adverb
ballpark	Yes	No	No	No
ambit	Yes	No	No	No

As nouns, ambit is a hypernym of ballpark; that is, ambit is a word with a broader meaning than ballpark:

Other hypernyms of ballpark include compass, orbit, range, reach, scope.

ballpark (noun)	ambit (noun)
a facility in which ball games are played (especially baseball games)	an area in which something acts or operates or has power or control:
near to the scope or range of something