how to reply to merci in french

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When someone says 'merci,' which means 'thank you' in French, you can respond with 'de rien.' It means 'you're welcome' or 'it's nothing.'

Another common response is 'je vous en prie,' which is a more formal way of saying 'you're welcome.' Also, 'pas de problème' can be used, which means 'no problem.' Remember, language is about expressing, the exact words aren't the most important part, rather the sentiment you are trying to share.