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Synonyms

backside

American  
[bak-sahyd] / ˈbækˌsaɪd /

noun

  1. the rear or back part or view of an object, person, scene, etc.; that part which is opposite the front.

  2. rump; buttocks.

backside British  
/ ˌbækˈsaɪd /

noun

  1. the back of something

  2. informal the buttocks

"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 backside

1350–1400; Middle English back syde; back 1, side 1; compare Old English bæce backside

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.