Solomon's seal vs Mogen David

Solomon's seal and Mogen David both are nouns.

Word	Noun	Adjective	Verb	Adverb
Solomon's seal	Yes	No	No	No
Mogen David	Yes	No	No	No

As nouns, Solomon's seal and Mogen David are synonyms defined as:

Solomon's seal and Mogen David: a six-pointed star formed from two equilateral triangles; an emblem symbolizing Judaism

Other synonyms of Solomon's seal include Magen David, Shield of David, Star of David.

Solomon's seal (noun)	Mogen David (noun)
a six-pointed star formed from two equilateral triangles; an emblem symbolizing Judaism	a six-pointed star formed from two equilateral triangles; an emblem symbolizing Judaism