judgment vs estimation

judgment and estimation both are nouns.

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

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

judgment (noun)	estimation (noun)
(law) the determination by a court of competent jurisdiction on matters submitted to it	a judgment of the qualities of something or somebody
the act of judging or assessing a person or situation or event	an approximate calculation of quantity or degree or worth
the capacity to assess situations or circumstances shrewdly and to draw sound conclusions	the respect with which a person is held
the cognitive process of reaching a decision or drawing conclusions	a document appraising the value of something (as for insurance or taxation)
the mental ability to understand and discriminate between relations
an opinion formed by judging something
the legal document stating the reasons for a judicial decision