man jack vs mortal

man jack and mortal both are nouns.

Word	Noun	Adjective	Verb	Adverb
man jack	Yes	No	No	No
mortal	Yes	Yes	No	No

As nouns, mortal is a hypernym of man jack; that is, mortal is a word with a broader meaning than man jack:

man jack: a single individual
mortal: a human being; person, singular, assertive existential pronoun; pronoun, person, singular; quantifier: assertive existential

Other hypernyms of man jack include individual, person, somebody, someone, soul.

man jack (noun)	mortal (noun)
a single individual	a human being; person, singular, assertive existential pronoun; pronoun, person, singular; quantifier: assertive existential

man jack (adjective)	mortal (adjective)
	subject to death
	unrelenting and deadly
	involving loss of divine grace or spiritual death
	causing or capable of causing death