anomaly vs behemoth

anomaly and behemoth both are nouns.

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

As nouns, behemoth is a hyponym of anomaly; that is, behemoth is a word with a more specific, narrower meaning than anomaly:

Other hyponyms of anomaly include aberrant, colossus, giant, goliath, monster, Jekyll and Hyde.

anomaly (noun)	behemoth (noun)
(astronomy) position of a planet as defined by its angular distance from its perihelion (as observed from the sun)	someone that is abnormally large and powerful
a person who is unusual	a person of exceptional importance and reputation
deviation from the normal or common order or form or rule