Needless to say vs Of course

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

Needless to say

Top 2,000 (common)

Of course

Top 1,000 (very common)
Most common: Of course
 Needless to sayOf course
Pronunciation🇬🇧 //ˈniːdləs tə seɪ//🇺🇸 //ˈnidləs tə seɪ//🇬🇧 //əv kɔːs//🇺🇸 //əv kɔrs//
MeaningIt means something is obvious or well-known.Definitely, it's obvious.
ExampleNeedless to say, we all knew she would win the competition.Are you joining us for dinner tonight? Of course!
RegisterNeutralNeutral
How commonTop 2,000 (common)Top 1,000 (very common)
Collocationsneedless to say, it goes without saying, obviously, must be saidof course not, of course yes, of course you can, of course it is
Common mistakesUsing it with complex sentences where simpler language would suffice., Confusing it with 'needless' which has a different meaning.Using it in formal writing where a different expression is needed., Confusing it with other affirmations like 'certainly' or 'definitely'.
Usage notesUsed to introduce a conclusion or something that is already understood. It's appropriate in both spoken and written contexts, but avoid in very formal writing.Used in informal and formal situations to affirm something obvious. Avoid in highly formal writing.

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Needless to say
Of course

Frequently asked questions: Needless to say vs Of course

What's the difference between Needless to say and Of course?

Needless to say: It means something is obvious or well-known. Of course: Definitely, it's obvious.

Which is more common: Needless to say and Of course?

Of course is the most common in everyday English.

Can you show an example of each?

Needless to say: Needless to say, we all knew she would win the competition. Of course: Are you joining us for dinner tonight? Of course!

Can I use Needless to say and Of course interchangeably?

Not always. Needless to say and Of course 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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