Mogen David vs Shield of David

Mogen David and Shield of David both are nouns.

Word	Noun	Adjective	Verb	Adverb
Mogen David	Yes	No	No	No
Shield of David	Yes	No	No	No

As nouns, Mogen David and Shield of David are synonyms defined as:

Mogen David and Shield of David: a six-pointed star formed from two equilateral triangles; an emblem symbolizing Judaism

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

Mogen David (noun)	Shield of 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