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I Russian speaker and we have sign for American #.

But I surprised that there are uses of No. abbreviation as shortened form of number.

What the origin of "no." abbreviation in meaning of "number"?

Because it must be nu or num... Is that come from Latin?

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marked as duplicate by Andrew Leach, Hugo, Kris, J.R., Brian Hooper Jun 14 '13 at 11:23

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

The "no." abbreviation of number is Latin in origin, a short form of numero. See http://latin-phrases.co.uk/abbreviations/ for other examples of Latin abbreviations.

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Thanks for link! +1 – gavenkoa Jun 14 '13 at 7:53

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