capitalization vs estimation

capitalization and estimation both are nouns.

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

As nouns, estimation is a hypernym of capitalization; that is, estimation is a word with a broader meaning than capitalization:

Other hypernyms of capitalization include estimate.

capitalization (noun)	estimation (noun)
the act of capitalizing on an opportunity	a judgment of the qualities of something or somebody
the sale of capital stock	an approximate calculation of quantity or degree or worth
an estimation of the value of a business	the respect with which a person is held
writing in capital letters	a document appraising the value of something (as for insurance or taxation)