endomorph vs someone

endomorph and someone both are nouns.

Word	Noun	Adjective	Verb	Adverb
endomorph	Yes	No	No	No
someone	Yes	No	No	No

As nouns, someone is a hypernym of endomorph; that is, someone is a word with a broader meaning than endomorph:

endomorph: a heavy person with a soft and rounded body
someone: a human being; person, singular, assertive existential pronoun; pronoun, person, singular; quantifier: assertive existential

Other hypernyms of endomorph include individual, mortal, person, somebody, soul.

endomorph (noun)	someone (noun)
a heavy person with a soft and rounded body	a human being; person, singular, assertive existential pronoun; pronoun, person, singular; quantifier: assertive existential