mental object vs noesis

mental object and noesis both are nouns.

Word	Noun	Adjective	Verb	Adverb
mental object	Yes	No	No	No
noesis	Yes	No	No	No

As nouns, noesis is a hypernym of mental object; that is, noesis is a word with a broader meaning than mental object:

mental object: the sum or range of what has been perceived, discovered, or learned
noesis: the psychological result of perception and learning and reasoning

Other hypernyms of mental object include cognition, knowledge.

mental object (noun)	noesis (noun)
the sum or range of what has been perceived, discovered, or learned	the psychological result of perception and learning and reasoning