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2017 Word of the Year

Oz1

[oz] /ɒz/
noun, Australian Slang.
1.
Origin of Oz1
jocular back formation from Aussie (with voiced sibilant)

Oz2

[oz] /ɒz/
noun

oz.

1.
ounce; ounces.
Origin
abbreviation of Italian onza
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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British Dictionary definitions for Oz

oz

abbreviation
1.
ounce
Word Origin
from Italian onza

Oz

/ɒz/
noun
1.
(Austral, slang) Australia
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for Oz

mythical land in L. Frank Baum's "The Wonderful Wizard of Oz" (1900) and sequels; according to an anecdote written by Baum in 1903, inspired by a three-drawer desktop cabinet letter file, the last drawer labeled O-Z. As Australian slang for "Australia," attested by 1983.

oz.

abbreviation of ounce (n.1), 1540s, from Italian oz. (15c.), abbreviation of onza.

Online Etymology Dictionary, © 2010 Douglas Harper
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Oz in Medicine

oz or oz.
abbr.
ounce

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Oz in Science
oz  
Abbreviation of ounce
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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