chauvinist vs flag-waver

chauvinist and flag-waver both are nouns.

Word	Noun	Adjective	Verb	Adverb
chauvinist	Yes	No	No	No
flag-waver	Yes	No	No	No

As nouns, chauvinist and flag-waver are synonyms defined as:

Other synonyms of chauvinist include hundred-percenter, jingo, jingoist, patrioteer.

chauvinist (noun)	flag-waver (noun)
an extreme bellicose nationalist	an extreme bellicose nationalist
a person with a prejudiced belief in the superiority of his or her own kind