banner vs oriflamme

banner and oriflamme both are nouns.

Word	Noun	Adjective	Verb	Adverb
banner	Yes	Yes	No	No
oriflamme	Yes	No	No	No

As nouns, oriflamme is a hyponym of banner; that is, oriflamme is a word with a more specific, narrower meaning than banner:

banner: any distinctive flag
oriflamme: a red or orange-red flag used as a standard by early French kings

banner (noun)	oriflamme (noun)
long strip of cloth or paper used for decoration or advertising	a red or orange-red flag used as a standard by early French kings
any distinctive flag	an inspiring symbol or ideal that serves as a rallying point in a struggle
a newspaper headline that runs across the full page

banner (adjective)	oriflamme (adjective)
unusually good; outstanding