theorem vs thought

theorem and thought both are nouns.

Word	Noun	Adjective	Verb	Adverb
theorem	Yes	No	No	No
thought	Yes	No	No	No

As nouns, thought is a hypernym of theorem; that is, thought is a word with a broader meaning than theorem:

Other hypernyms of theorem include idea.

theorem (noun)	thought (noun)
an idea accepted as a demonstrable truth	the process of using your mind to consider something carefully
a proposition deducible from basic postulates	the content of cognition; the main thing you are thinking about
	the organized beliefs of a period or group or individual
	a personal belief or judgment that is not founded on proof or certainty