scaling vs mensuration

scaling and mensuration both are nouns.

Word	Noun	Adjective	Verb	Adverb
scaling	Yes	No	No	No
mensuration	Yes	No	No	No

As nouns, mensuration is a hypernym of scaling; that is, mensuration is a word with a broader meaning than scaling:

scaling: act of measuring or arranging or adjusting according to a scale
mensuration: the act or process of assigning numbers to phenomena according to a rule

Other hypernyms of scaling include measure, measurement, measuring.

scaling (noun)	mensuration (noun)
act of measuring or arranging or adjusting according to a scale	the act or process of assigning numbers to phenomena according to a rule
the act of arranging in a graduated series
ascent by or as if by a ladder