person vs physical body

person and physical body both are nouns.

Word	Noun	Adjective	Verb	Adverb
person	Yes	No	No	No
physical body	Yes	No	No	No

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

Other hypernyms of person include anatomy, bod, build, chassis, figure, flesh, form, frame, human body, material body, physique, shape, soma.

person (noun)	physical body (noun)
a human being; person, singular, assertive existential pronoun; pronoun, person, singular; quantifier: assertive existential	alternative names for the body of a human being
a human body (usually including the clothing)
a grammatical category used in the classification of pronouns, possessive determiners, and verb forms according to whether they indicate the speaker, the addressee, or a third party