most zipless


2 [zip]
verb (used with object), zipped, zipping.
to fasten or unfasten with a zipper: Zip your jacket. Zip open the traveling case.
to enclose or free by doing up or undoing a zipper: Zip this money into your wallet. Zip me out of my dress.
verb (used without object), zipped, zipping.
to become fastened or unfastened by means of a zipper: a handy purse that zips shut.
to do up or undo a zipper.
a zipper.
utilizing or having a zipper: a coat with a zip front.

1935–40, Americanism; back formation from zipper

zipless, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
zip (zɪp)
1.  a.  Also called: zip fastener, US and Canadian term: zipper a fastening device operating by means of two parallel rows of metal or plastic teeth on either side of a closure that are interlocked by a sliding tab
 b.  (modifier) having or equipped with such a device: a zip bag
2.  a short sharp whizzing sound, as of a passing bullet
3.  informal energy; vigour; vitality
4.  slang (US) nothing
5.  slang (US), (Canadian) sport nil
vb (often foll by up) , zips, zipping, zipped
6.  to fasten (clothing, a bag, etc) with a zip
7.  (intr) to move with a zip: the bullet zipped past
8.  (intr; often foll by along, through, etc) to hurry; rush: they zipped through town
9.  (tr) computing to compress (a file) in order to reduce the amount of memory required to store it or to make sending it electronically quicker
[C19: of imitative origin]

Zip (zɪp)
(NZ) trademark an electric water heater

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Word Origin & History

1963, in U.S. postal ZIP code, an acronym for Zone Improvement Plan, no doubt chosen with conscious echo of zip (v.1).

"move rapidly," 1852, of echoic origin. Zippy is first attested 1904. Zip gun "homemade pistol" first recorded 1950.

"zero," 1900, student slang for a grade of zero on a test, etc.; of unknown origin; cf. zilch.

"to close or fasten by means of a zipper," 1932, back-formation from zipper.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Abbreviations & Acronyms
compressed file
  1. zone improvement plan

  2. Zone Information Protocol

The American Heritage® Abbreviations Dictionary, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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