reasoning vs thought

reasoning and thought both are nouns.

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

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

Other hypernyms of reasoning include cerebration, intellection, mentation, thinking, thought process.

reasoning (noun)	thought (noun)
thinking that is coherent and logical	the process of using your mind to consider something carefully
	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

reasoning (adjective)	thought (adjective)
endowed with the capacity to reason