Founding Father vs Constitutional Convention

Founding Father and Constitutional Convention both are nouns.

Word	Noun	Adjective	Verb	Adverb
Founding Father	Yes	No	No	No
Constitutional Convention	Yes	No	No	No

Founding Father (noun)	Constitutional Convention (noun)
a member of the Constitutional Convention that drafted the United States Constitution in 1787	the convention of United States statesmen who drafted the United States Constitution in 1787