WHERE do new words come from? On Twitter at least, they often begin life in cities with large African American populations before spreading more widely, according to a study of the language used on the social network.
at the Georgia Institute of Technology in Atlanta and colleagues examined 30 million tweets sent from US locations between December 2009 and May 2011. Several new terms spread during this period, including 鈥渂ruh鈥�, an alternative spelling of 鈥渂ro鈥� or 鈥渂rother鈥�, which first arose in a few south-east cities before eventually hopping to parts of California. Residents of Cleveland, Ohio, were the first to use 鈥渃tfu鈥�, an abbreviation of 鈥渃racking the fuck up鈥�, usage that has since spread into Pennsylvania ().
After collecting the data, the team built a mathematical model that captures the large-scale flow of new words between cities. The model revealed that cities with big African American populations tend to lead the way in linguistic innovation. The team is still working on a more detailed analysis and says it is too early to say which cities are the most influential.
Advertisement
Researchers have tracked the diffusion of words like 鈥渃ool鈥� and 鈥渦ptight鈥� from black communities to mainstream use in the past. 鈥淲e have thousands of examples,鈥� says Eisenstein. Their data cannot shed light on why the flow is in this direction, but he notes that language is just one cultural area in which traditions have spread outwards from African American communities.
The team also found that cities that are economically and ethnically similar 鈥� rather than geographically close to one another 鈥� are more likely to share new words. 鈥淭heir results indicate that birds of a feather tweet together,鈥� says , a linguist at the University of Groningen in the Netherlands.
聯Cities that are ethnically and economically similar are more likely to share new words on Twitter聰
Eisenstein says he is looking into whether neologisms now spread more rapidly because of Twitter and other social networks. He is also interested in exploring whether social media is accelerating the evolution of language more generally, something that could be done by analysing everything from blog posts to Facebook entries. It鈥檚 not like the old days, he says, when the spread of a word relied on people travelling to new areas.
