an opensquare where several streets converge, in London, England. The buses don't bump as badly as they would while going around Oxford Circus.an intersection between two major streets, Regent Street and Oxford Street in London, England. It is one of the centraltraffic interchanges in London and is located in the center of the shopping district of the city. A circus in this sense is an open, usually circular, area in a town where streets converge.an opensquare where several streets converge, in London, England.