No one knows vs Nobody knows where he is

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

No one knows

Top 2,000 (common)

Nobody knows where he is

Top 2,000 (common)
 No one knowsNobody knows where he is
Pronunciation🇬🇧 //nəʊ wʌn nəʊz//🇺🇸 //noʊ wʌn noʊz//🇬🇧 //ˈnəʊ.bə.di nəʊz weə hiː ɪz//🇺🇸 //ˈnoʊˌbɑː.di noʊz wɛr hi ɪz//
MeaningNobody is aware or has information.No one knows the person's location.
ExampleDespite the rumors, no one knows the truth about what happened.Nobody knows where he is, and we are all worried.
RegisterNeutralNeutral
How commonTop 2,000 (common)Top 2,000 (common)
Collocationsknow the truth, know the answer, understand what happenednobody knows, where he is, nobody understands
Common mistakesUsing 'no one know' instead of 'no one knows'., Confusing with 'someone knows' which implies some knowledge., Misusing in questions, e.g., 'Does no one knows?'Confused about using 'nobody' vs 'no one'., Using 'where' incorrectly in indirect questions., Omitting 'is' when used in a sentence.
Usage notesUse in casual or formal contexts when emphasizing lack of knowledge. Avoid in very formal writing.Use in casual conversations. It's more informal and may not suit very formal contexts.

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No one knows
Nobody knows where he is

Frequently asked questions: No one knows vs Nobody knows where he is

What's the difference between No one knows and Nobody knows where he is?

No one knows: Nobody is aware or has information. Nobody knows where he is: No one knows the person's location.

Can you show an example of each?

No one knows: Despite the rumors, no one knows the truth about what happened. Nobody knows where he is: Nobody knows where he is, and we are all worried.

Can I use No one knows and Nobody knows where he is interchangeably?

Not always. No one knows and Nobody knows where he is 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.