The Collaborative International Dictionary of English v.0.48:

Zip \Zip\, v. i.
   To make, or move with, a sound like a zip[1].
   [Webster 1913 Suppl.]

The Collaborative International Dictionary of English v.0.48:

Zip \Zip\ (z[i^]p), n. [Imitative.]
   1. A hissing or sibilant sound such as that made by a flying
      bullet.
      [Webster 1913 Suppl.]

   2. a quantity of no importance. [informal]

   Syn: nothing, nihil, nichts, nix, nada, aught, cipher,
        cypher, goose egg, naught, nil, zero, zilch.
        [WordNet 1.5]

   3. a device for locking together two toothed edges by means
      of a sliding tab.

   Syn: slide fastener, zipper, zip-fastener.
        [WordNet 1.5]

WordNet (r) 3.0 (2006):

zip
    n 1: a quantity of no importance; "it looked like nothing I had
         ever seen before"; "reduced to nil all the work we had
         done"; "we racked up a pathetic goose egg"; "it was all for
         naught"; "I didn't hear zilch about it" [syn: nothing,
         nil, nix, nada, null, aught, cipher, cypher,
         goose egg, naught, zero, zilch, zip, zippo]
    2: a code of letters and digits added to a postal address to aid
       in the sorting of mail [syn: ZIP code, ZIP, postcode,
       postal code]
    3: forceful exertion; "he plays tennis with great energy"; "he's
       full of zip" [syn: energy, vigor, vigour, zip]
    4: a fastener for locking together two toothed edges by means of
       a sliding tab [syn: slide fastener, zip, zipper, zip
       fastener]
    v 1: close with a zipper; "Zip up your jacket--it's cold" [syn:
         zip up, zipper, zip] [ant: unzip]
    2: move very fast; "The runner zipped past us at breakneck
       speed" [syn: travel rapidly, speed, hurry, zip]

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

zip
PK
zip file
zipped
zipped file

   1.  A compressed archive
   containing one or more files, the act of creating it and its
   filename extension.  Originally, such a "zip file" was
   created using PKWare, Inc.'s PKZIP utility program for
   MS-DOS.

   Due to the popularity of the original program, the format has
   spread to Windows, Unix and other operating systems and
   the function is often built into file managers.

   unzip is the corresponding de-archiver or the act of
   extracting files from an archive.

   The first two bytes of a zip file are the ASCII characters
   "PK" after Phil Katz who developed the original PKZIP.

   See also gzip, tar and feather.

   (1996-08-26)

   2.  Zip Drive.

   [Jargon File]

   3.  zip function.

   (2017-02-26)


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

zip
 vt.

    [primarily MS-DOS/Windows] To create a compressed archive from a group of
    files using PKWare's PKZIP or a compatible archiver. Its use is spreading
    now that portable implementations of the algorithm have been written.
    Commonly used as follows: “I'll zip it up and send it to you.” See tar and
    feather.