patriot vs flag-waver

patriot and flag-waver both are nouns.

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

As nouns, flag-waver is a hyponym of patriot; that is, flag-waver is a word with a more specific, narrower meaning than patriot:

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

patriot (noun)	flag-waver (noun)
one who loves and defends his or her country	an extreme bellicose nationalist