n.
  - a long strip of cloth bearing a slogan or design, carried in a procession or hung in a public place. ▸historical a flag on a pole used as the standard of a monarch, knight, or army. 
- an advertisement on a website in the form of bar, column, or box.
adj.
 N. Amer. excellent; outstanding:
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 a banner year.
Derivative
  
  Etymology
  ME: from OFr. baniere, ult. of Gmc origin and rel. to band2.