Bottom vs Buttocks

When to use each in English, with meaning, register, and examples.

Bottom

Top 1,000 (very common)A2noun

Buttocks

Top 5,000 (fairly common)
Most common: Bottom
 BottomButtocks
Pronunciation🇬🇧 /["/ˈbɒtəm/"]/🇺🇸 /["/ˈbɑːtəm/"]/🇬🇧 //ˈbʌt.ɒks//🇺🇸 //ˈbʌt.ɑːks//
MeaningThe lowest part of something.The two round parts at the back of your body.
ExampleHe fell to the bottom of the hill after tripping.He fell and landed right on his buttocks.
RegisterNeutralNeutral
How commonTop 1,000 (very common)Top 5,000 (fairly common)
CEFR levelA2-
Part of speechnoun
Collocationsfalse, arrive at, fall to, get to, end, half, along the bottom, at the bottom, from the bottom, false, arrive at, fall to, get to, end, half, along the bottom, at the bottom, from the bottom, false, arrive at, fall to, get to, end, half, along the bottom, at the bottom, from the bottom, false, arrive at, fall to, get to, end, half, along the bottom, at the bottom, from the bottom, start at, work up from, at the bottom, near the bottom, towards/​toward the bottom, bare, slap, smack, spank, false, arrive at, fall to, get to, end, half, along the bottom, at the bottom, from the bottomfirm buttocks, tight buttocks, buttocks muscles, sore buttocks
Antonymstop, peak, summit-
Common mistakesConfused with 'base' in certain contexts., Using 'bottom' when 'end' is more appropriate., Mixing up 'bottom' as a noun and a verb.Confused with 'butt' as a slang term., Used too openly in formal settings.
Usage notesUse 'bottom' when referring to the lowest part of an object, surface, or concept. It is appropriate in both formal and informal contexts, but avoid using it in highly technical discussions where specific terminology is required.Commonly used in medical or anatomical contexts. Informal synonyms may sound crude. Avoid in polite conversation.

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Bottom
Buttocks

Frequently asked questions: Bottom vs Buttocks

What's the difference between Bottom and Buttocks?

Bottom: The lowest part of something. Buttocks: The two round parts at the back of your body.

Which is more common: Bottom and Buttocks?

Bottom is the most common in everyday English.

Can you show an example of each?

Bottom: He fell to the bottom of the hill after tripping. Buttocks: He fell and landed right on his buttocks.

Can I use Bottom and Buttocks interchangeably?

Not always. Bottom and Buttocks are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.

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