anomaly vs somebody

anomaly and somebody both are nouns.

Word	Noun	Adjective	Verb	Adverb
anomaly	Yes	No	No	No
somebody	Yes	No	No	No

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

anomaly: a person who is unusual
somebody: a human being; person, singular, assertive existential pronoun; pronoun, person, singular; quantifier: assertive existential

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

anomaly (noun)	somebody (noun)
(astronomy) position of a planet as defined by its angular distance from its perihelion (as observed from the sun)	a human being; person, singular, assertive existential pronoun; pronoun, person, singular; quantifier: assertive existential
a person who is unusual
deviation from the normal or common order or form or rule