Semite vs Chaldean

Semite and Chaldean both are nouns.

Word	Noun	Adjective	Verb	Adverb
Semite	Yes	Yes	No	No
Chaldean	Yes	Yes	No	No

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

Semite: a member of a group of Semitic-speaking peoples of the Middle East and northern Africa
Chaldean: an inhabitant of ancient Chaldea

Other hyponyms of Semite include Babylonian, Chaldaean, Chaldee, Assyrian, Phoenician, Arab, Arabian, Aramaean, Aramean, Canaanite.

Semite (noun)	Chaldean (noun)
a member of a group of Semitic-speaking peoples of the Middle East and northern Africa	an inhabitant of ancient Chaldea
	a wise man skilled in occult learning

Semite (adjective)	Chaldean (adjective)
of or relating to or characteristic of Semites	of or relating to ancient Chaldea or its people or language or culture