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Synonyms

backside

American  
[bak-sahyd] / ˈbækˌsaɪd /

noun

  • backsides
    plural
  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

Other Word Forms

Noun Inflected Forms

Etymology

Origin of backside

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

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

These days, that backside has turned Brunson into the most valuable asset in the entire NBA.

From The Wall Street Journal Jun. 2, 2026

It might be a game where Arsenal need a little kick up the backside, though.

From BBC May 7, 2026

Sometimes, those gates can snap back and deliver a parting gift – a smack on the backside.

From Los Angeles Times Feb. 15, 2026

"I gave myself a kick up the backside and said I would make an album, a real bedroom project," he says.

From BBC Jan. 22, 2026

She was worried that I’d sit on my backside and give up, that I’d stop trying.

From "Ugly" by Robert Hoge

Perhaps part of the reason for the silence is that people aren’t getting the information out of Iran that they need to get them off their backsides and into the streets.

From The Wall Street Journal Jan. 12, 2026

“We are working our backsides off, we feel unfulfilled, and we think, ‘For what?’”

From MarketWatch Jan. 10, 2026

It doesn't matter that this is at Old Trafford, because we will still kick their backsides there anyway!

From BBC Mar. 14, 2024

To its embarrassment, the Katy ISD Board of Trustees realized that its “nudity” bans had extended to several elementary school library books depicting cartoon backsides.

From Salon Dec. 30, 2023

But the fire burned hot that morning, and they drank their tea standing up, turning around slowly to warm their backsides.

From "Huntress" by Malinda Lo

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