figuring vs estimation

figuring and estimation both are nouns.

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

As nouns, estimation is a hyponym of figuring; that is, estimation is a word with a more specific, narrower meaning than figuring:

figuring (noun)	estimation (noun)
problem solving that involves numbers or quantities	a judgment of the qualities of something or somebody
	an approximate calculation of quantity or degree or worth
	the respect with which a person is held
	a document appraising the value of something (as for insurance or taxation)