Cosa (chi) è commercial at - definizione
![[[Arboga]] rådhusrätt och magistrat}})](https://commons.wikimedia.org/wiki/Special:FilePath/1674 liten.jpg?width=200 "[[Arboga]] rådhusrätt och magistrat}})")
![via=[[Vatican Library]]}}</ref>](https://commons.wikimedia.org/wiki/Special:FilePath/19-manasses-chronicle.jpg?width=200 "via=[[Vatican Library]]}}</ref>")
![Bicameral]] @ letter as used in the [[Koalib language]].](https://commons.wikimedia.org/wiki/Special:FilePath/Atletter.svg?width=200 "Bicameral]] @ letter as used in the [[Koalib language]].")
![[[X-SAMPA]] uses an @ as a substitute for [[ə]], which it resembles in some fonts.](https://commons.wikimedia.org/wiki/Special:FilePath/OCR-A char Commercial At.svg?width=200 "[[X-SAMPA]] uses an @ as a substitute for [[ə]], which it resembles in some fonts.")
Wikipedia
The at sign, @, is normally read aloud as "at"; it is also commonly called the at symbol, commercial at, or address sign. It is used as an accounting and invoice abbreviation meaning "at a rate of" (e.g. 7 widgets @ £2 per widget = £14), but it is now seen more widely in email addresses and social media platform handles.
The absence of a single English word for the symbol has prompted some writers to use the French arobase or Spanish and Portuguese arroba, or to coin new words such as ampersat and asperand, or the (visual) onomatopoeia strudel, but none of these have achieved wide use.
Although not included on the keyboard of the earliest commercially successful typewriters, it was on at least one 1889 model and the very successful Underwood models from the "Underwood No. 5" in 1900 onward. It started to be used in email addresses in the 1970s, and is now routinely included on most types of computer keyboards.
