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:
 a banner year.
 
  Derivative
  
  Etymology
  ME: from OFr. baniere, ult. of Gmc origin and rel. to band2.