Joke vs Knock, knock

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

Joke

Top 1,000 (very common)A2noun

Knock, knock

InformalTop 5,000 (fairly common)
Most formal: JokeMost common: Joke
 JokeKnock, knock
Pronunciation🇬🇧 /["/dʒəʊk/"]/🇺🇸 /["/dʒəʊk/"]/🇬🇧 //nɒk nɒk//🇺🇸 //nɑk nɑk//
MeaningA funny story or sentence meant to make people laugh.A way to start a funny door greeting.
ExampleHe made a joke that made everyone laugh.He said, 'Knock, knock!' and I replied, 'Who's there?'
RegisterNeutralInformal
How commonTop 1,000 (very common)Top 5,000 (fairly common)
CEFR levelA2-
Part of speechnoun
Collocationsamusing, funny, good, crack, make, tell, fall flat, be on somebody, as a joke, joke about, make a joke of somethingknock, knock joke, knock, knock greeting
Antonymsseriousnesssilence, quiet
Common mistakesConfused with 'prank' — a joke is verbal, while a prank is a practical joke., Using 'joke' as a transitive verb incorrectly; it usually requires a subject to joke about., Omitting context — it's important to know your audience when telling a joke.Forgetting the response after the first knock, Using it in formal situations, Confusing it with other types of jokes
Usage notesUsed in casual conversations to lighten the mood. Not suitable for serious discussions or when discussing sensitive topics.Used in casual conversations, especially in jokes. Not suitable for formal contexts.

See it in real clips

Joke
Knock, knock

Frequently asked questions: Joke vs Knock, knock

What's the difference between Joke and Knock, knock?

Joke: A funny story or sentence meant to make people laugh. Knock, knock: A way to start a funny door greeting.

Which is more formal: Joke and Knock, knock?

Joke is the most formal of these.

Which is more common: Joke and Knock, knock?

Joke is the most common in everyday English.

Can you show an example of each?

Joke: He made a joke that made everyone laugh. Knock, knock: He said, 'Knock, knock!' and I replied, 'Who's there?'

Can I use Joke and Knock, knock interchangeably?

Not always. Joke and Knock, knock 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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