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Tupperware

American  
[tuhp-er-wair] / ˈtʌp ərˌwɛər /
Trademark.
  1. a brand name for plastic containers, used especially for food preparation and storage.


Tupperware British  
/ ˈtʌpəweə /

noun

  1. a range of plastic containers used for storing food

"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

Etymology

Origin of Tupperware

C20: Tupper , US manufacturing company + ware 1