idea vs figuring

idea and figuring both are nouns.

Word	Noun	Adjective	Verb	Adverb
idea	Yes	No	No	No
figuring	Yes	No	No	No

As nouns, figuring is a hypernym of idea; that is, figuring is a word with a broader meaning than idea:

Other hypernyms of idea include calculation, computation, reckoning.

idea (noun)	figuring (noun)
the content of cognition; the main thing you are thinking about	problem solving that involves numbers or quantities
your intention; what you intend to do
an approximate calculation of quantity or degree or worth
a personal view
(music) melodic subject of a musical composition