squinter vs someone

squinter and someone both are nouns.

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

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

squinter: a person with strabismus
someone: a human being; person, singular, assertive existential pronoun; pronoun, person, singular; quantifier: assertive existential

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

squinter (noun)	someone (noun)
a person with strabismus	a human being; person, singular, assertive existential pronoun; pronoun, person, singular; quantifier: assertive existential