Ass vs Behind

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

Ass

VulgarTop 5,000 (fairly common)

Behind

Top 1,000 (very common)A1preposition
Most formal: BehindMost common: Behind
 AssBehind
Pronunciation🇬🇧 //æs//🇺🇸 //æs//🇬🇧 /["/bɪˈhaɪnd/"]/🇺🇸 /["/bɪˈhaɪnd/"]/
MeaningA donkey or a rude term for a person's bottom.At the back of something.
ExampleHe made a real ass of himself at the party.The cat is hiding behind the curtain.
RegisterVulgarNeutral
How commonTop 5,000 (fairly common)Top 1,000 (very common)
CEFR level-A1
Part of speechpreposition
Collocationskick someone's ass, stupid ass, lazy assbehind the scenes, behind closed doors, fall behind
Antonymsgentleman, lord, masterin front of, ahead
Common mistakesConfused with 'arse', which is more common in British English., Using it in formal contexts where it may offend., Mispronouncing it as 'as' instead of including the 's' sound.Confusing 'behind' with 'in front of', Using 'behind' without a noun after it, Misplacing 'behind' in a sentence (e.g., 'I am behind the door' instead of 'Behind the door, I am')
Usage notesUsed informally, often to insult someone. Can also refer to a donkey in casual contexts. Avoid in formal settings.Use 'behind' to describe location or position. It's neutral and suitable for most contexts, but avoid using it in overly formal writing.

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Ass
Behind

Frequently asked questions: Ass vs Behind

What's the difference between Ass and Behind?

Ass: A donkey or a rude term for a person's bottom. Behind: At the back of something.

Which is more formal: Ass and Behind?

Behind is the most formal of these.

Which is more common: Ass and Behind?

Behind is the most common in everyday English.

Can you show an example of each?

Ass: He made a real ass of himself at the party. Behind: The cat is hiding behind the curtain.

Can I use Ass and Behind interchangeably?

Not always. Ass and Behind 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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