No. 4183 Anti-Aircraft Flight RAF Regiment
The numero sign or numero symbol, №, (also represented as Nº, No, No. or no.), is a Typography, typographic abbreviation of the word ''number''(''s'') indicating ordinal number, ordinal numeration, especially in names and titles. For example, using the numero sign, the written long-form of the address is shortened to , yet both forms are spoken long. Typographically, the numero sign combines as a single Orthographic ligature, ligature the uppercase Latin letter with a usually superscript lowercase O, letter , sometimes underlined, resembling the masculine ordinal indicator . The ligature has a code point in Unicode as a precomposed character, . The ''Oxford English Dictionary'' derives the numero sign from Latin , the Ablative case, ablative form of ("number", with the ablative denotations of "by the number, with the number"). In Romance languages, the numero sign is understood as an abbreviation of the word for "number", e.g. Italian , French , and Portuguese and Spanis ...
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Number Sign
The symbol is known variously in English-speaking regions as the number sign, hash, or pound sign. The symbol has historically been used for a wide range of purposes including the designation of an ordinal number and as a Typographic ligature, ligatured abbreviation for Pound (mass), pounds avoirdupois – having been derived from the now-rare . Since 2007, widespread usage of the symbol to introduce metadata tags on social media platforms has led to such tags being known as "hashtags", and from that, the symbol itself is sometimes called a hashtag. The symbol is distinguished from similar symbols by its combination of level horizontal strokes and right-tilting vertical strokes. History It is believed that the symbol traces its origins to the symbol , an abbreviation of the Roman term ''Roman pound, libra pondo'', which translates as "pound weight". This abbreviation was printed with a dedicated Ligature (writing), ligature type element, with a horizontal line across, so t ...
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