horse sense vs nous

horse sense and nous both are nouns.

Word	Noun	Adjective	Verb	Adverb
horse sense	Yes	No	No	No
nous	Yes	No	No	No

As nouns, nous is a hyponym of horse sense; that is, nous is a word with a more specific, narrower meaning than horse sense:

Other hyponyms of horse sense include logic, road sense.

horse sense (noun)	nous (noun)
sound practical judgment	that which is responsible for one's thoughts, feelings, and conscious brain functions; the seat of the faculty of reason
	common sense