problem solving vs intellection

problem solving and intellection both are nouns.

Word	Noun	Adjective	Verb	Adverb
problem solving	Yes	No	No	No
intellection	Yes	No	No	No

As nouns, intellection is a hypernym of problem solving; that is, intellection is a word with a broader meaning than problem solving:

problem solving: the thought processes involved in solving a problem
intellection: the process of using your mind to consider something carefully

Other hypernyms of problem solving include cerebration, mentation, thinking, thought, thought process.

problem solving (noun)	intellection (noun)
the thought processes involved in solving a problem	the process of using your mind to consider something carefully
the area of cognitive psychology that studies the processes involved in solving problems