No problem vs Think nothin of it

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

No problem

InformalTop 2,000 (common)

Think nothin of it

Top 2,000 (common)
Most formal: Think nothin of it
 No problemThink nothin of it
Pronunciation🇬🇧 //nəʊ ˈprɒbləm//🇺🇸 //noʊ ˈprɑːbləm//🇬🇧 //θɪŋk ˈnʌθɪn əv ɪt//🇺🇸 //θɪŋk ˈnʌθɪn əv ɪt//
MeaningIt's okay; there is no issue.Don't worry about it; it's not a big deal.
ExampleIf you need help, just ask! No problem at all!After you helped me carry those boxes, I said, 'Think nothing of it!'
RegisterInformalNeutral
How commonTop 2,000 (common)Top 2,000 (common)
Collocationsno problem at all, no problem with that, no problem for me, no problem saying, no problem helpingthank you, appreciate help, no problem, take it easy
Common mistakesUsing in formal situations like business meetings., Confusing with 'not a problem' - they are similar but can have different strengths in reassurance., Saying it too quickly to dismiss someone’s concern.Using in overly formal situations., Forgetting to say 'think nothing of it', often misremembered as 'don't think anything of it'., Using with a serious tone, which may confuse the listener.
Usage notesUse 'no problem' in casual situations to reassure someone. It’s friendly but may not fit formal contexts.Used to reassure someone that what they did is not an issue. Common in casual conversations. Avoid in formal settings.

See it in real clips

No problem
Think nothin of it

Frequently asked questions: No problem vs Think nothin of it

What's the difference between No problem and Think nothin of it?

No problem: It's okay; there is no issue. Think nothin of it: Don't worry about it; it's not a big deal.

Which is more formal: No problem and Think nothin of it?

Think nothin of it is the most formal of these.

Can you show an example of each?

No problem: If you need help, just ask! No problem at all! Think nothin of it: After you helped me carry those boxes, I said, 'Think nothing of it!'

Can I use No problem and Think nothin of it interchangeably?

Not always. No problem and Think nothin of it 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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