Ironsides vs national leader

Ironsides and national leader both are nouns.

Word	Noun	Adjective	Verb	Adverb
Ironsides	Yes	No	No	No
national leader	Yes	No	No	No

Ironsides (noun)	national leader (noun)
English general and statesman who led the parliamentary army in the English Civil War (1599-1658)	a person who is a respected leader in national or international affairs