buttock

noun

but·​tock ˈbə-tək 

also -(ˌ)täk

1

: the back of a hip that forms one of the fleshy parts on which a person sits

2

buttocks plural

a

: the seat of the body

b

: rump sense 1a

Synonyms of buttock

• cheeks
• bum
• seat
• tail
• rump

Examples of buttock in a Sentence

she slipped in the mud puddle and hit the ground square on her buttocks

Recent Examples on the Web

Jurors also saw a larger gunshot wound along his top right thigh and a slightly smaller wound near Shakur’s right buttock. — Andy Rose, CNN Money, 19 Aug. 2026

DeRamus said his girlfriend, 81-year-old Virginia Perkins, was sleeping in the front bedroom when she was shot above the buttocks. — Ryan Hughes, CBS News, 19 Aug. 2026

That’s a problem because subcutaneous fat deposits in places like the hips and buttocks don’t cause as much inflammation as fat in muscles or in organs like the liver. — Literary Hub, 17 Aug. 2026

Her sari—royal-purple silk stitched with miniature golden birds—hung straight down without any visible deviation in service to hips or buttocks. — Madhuri Vijay, New Yorker, 16 Aug. 2026

Word History

Etymology

Middle English buttok — more at butt entry 1

First Known Use

13th century, in the meaning defined at sense 1

Kids Definition

buttock

noun

but·​tock ˈbət-ək 

1

: the back of the hip which forms one of the fleshy parts on which a person sits

2

plural

a

: the seat of the body

b

: rump sense 1a

Medical Definition

buttock

noun

but·​tock ˈbət-ək 

1

: the back of a hip that forms one of the fleshy parts on which a person sits

2

buttocks plural : the seat of the body

also : the corresponding part of a quadruped : rump