The Collaborative International Dictionary of English v.0.48:

Banner \Ban"ner\ (b[a^]n"n[~e]r), n. [OE. banere, OF. baniere,
   F. banni[`e]re, bandi[`e]re, fr. LL. baneria, banderia, fr.
   bandum banner, fr. OHG. bant band, strip of cloth; cf. bindan
   to bind, Goth. bandwa, bandwo, a sign. See Band, n.]
   1. A kind of flag attached to a spear or pike by a
      crosspiece, and used by a chief as his standard in battle.
      [1913 Webster]

            Hang out our banners on the outward walls. --Shak.
      [1913 Webster]

   2. A large piece of silk or other cloth, with a device or
      motto, extended on a crosspiece, and borne in a
      procession, or suspended in some conspicuous place.
      [1913 Webster]

   3. Any flag or standard; as, the star-spangled banner.
      [1913 Webster]

   Banner fish (Zool.), a large fish of the genus
      Histiophorus, of the Swordfish family, having a broad
      bannerlike dorsal fin; the sailfish. One species
      (Histiophorus Americanus) inhabits the North Atlantic.
      [1913 Webster]

WordNet (r) 3.0 (2006):

banner
    adj 1: unusually good; outstanding; "a banner year for the
           company"
    n 1: long strip of cloth or paper used for decoration or
         advertising [syn: banner, streamer]
    2: a newspaper headline that runs across the full page [syn:
       streamer, banner]
    3: any distinctive flag [syn: standard, banner]

The Free On-line Dictionary of Computing (19 January 2023):

banner
burst page
fly page

    1. (Or "banner page", "burst page") A title page added by a
print
   spooler to the start of each individual printout sent to a shared
printer.
   The banner page typically includes user account information in
very	large
   character graphics capitals to help users find their printouts.
The
   name "burst page" comes from "bursting" or tearing apart the
continuous
   length of fan-fold paper to separate one user's printout from the
next.

   2. A printout along the length of multiple pages of	fan-fold paper,
typically
   consisting of character graphics generated from user-specified
text, e.g. by
   the program in sense 3.

   3. The Unix program that produces output suitable to send to a
printer to
   create a banner in sense 2.

   Unix manual page: banner(1).

   [Jargon File]

   (2022-12-01)


The Jargon File (version 4.4.7, 29 Dec 2003):

banner
 n.

    1. A top-centered graphic on a web page. Esp. used in banner ad.

    2. On interactive software, a first screen containing a logo and/or author
    credits and/or a copyright notice. Similar to splash screen.

    3. The title page added to printouts by most print spoolers (see spool).
    Typically includes user or account ID information in very large
    character-graphics capitals. Also called a burst page, because it indicates
    where to burst (tear apart) fanfold paper to separate one user's printout
    from the next.

    4. A similar printout generated (typically on multiple pages of fan-fold
    paper) from user-specified text, e.g., by a program such as Unix's banner
    (1,6).