handicapped person vs somebody

handicapped person and somebody both are nouns.

Word	Noun	Adjective	Verb	Adverb
handicapped person	Yes	No	No	No
somebody	Yes	No	No	No

As nouns, somebody is a hypernym of handicapped person; that is, somebody is a word with a broader meaning than handicapped person:

handicapped person: a person who has some condition that markedly restricts their ability to function physically or mentally or socially
somebody: a human being; person, singular, assertive existential pronoun; pronoun, person, singular; quantifier: assertive existential

Other hypernyms of handicapped person include individual, mortal, person, someone, soul.

handicapped person (noun)	somebody (noun)
a person who has some condition that markedly restricts their ability to function physically or mentally or socially	a human being; person, singular, assertive existential pronoun; pronoun, person, singular; quantifier: assertive existential