A large sign or strip of fabric with words or images

• Carried in marches or hung across streets or buildings

A flag or standard of a nation, army, or group

• By extension, the group or unit under that flag

The printed title of a newspaper on its front page; masthead

A graphic advertisement on a webpage, often wide and horizontal

• Also a similar strip on TV or in apps

A cause or movement used as a rallying principle

• As in: under the banner of reform

Exceptional; very good (chiefly US), as in banner year

To decorate with a banner

• To display as a bold banner headline