hypsography vs measurement

hypsography and measurement both are nouns.

Word	Noun	Adjective	Verb	Adverb
hypsography	Yes	No	No	No
measurement	Yes	No	No	No

As nouns, measurement is a hypernym of hypsography; that is, measurement is a word with a broader meaning than hypsography:

hypsography: measurement of the elevation of land above sea level
measurement: the act or process of assigning numbers to phenomena according to a rule

Other hypernyms of hypsography include measure, measuring, mensuration.

hypsography (noun)	measurement (noun)
measurement of the elevation of land above sea level	the act or process of assigning numbers to phenomena according to a rule
the scientific study of the earth's configuration above sea level (emphasizing the measurement of land altitudes relative to sea level)