[adjective oh-ver-sahyz; noun oh-ver-sahyz]
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  1. something that is oversize; an oversize article or object.
  2. a size larger than the proper or usual size.

Origin of oversize

First recorded in 1605–15; over- + size1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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British Dictionary definitions for oversized


adjective (ˌəʊvəˈsaɪz)
  1. Also: oversized larger than the usual size
noun (ˈəʊvəˌsaɪz)
  1. a size larger than the usual or proper size
  2. something that is oversize
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

Word Origin and History for oversized

1788, past participle adjective from oversize "make too large" (1670s), from over- + size (v.).

Online Etymology Dictionary, © 2010 Douglas Harper