PROCESSION

[noun] [C] - a line of people who are all walking or travelling in the same direction, esp. in a formal way as part of a religious ceremony or public celebrationa wedding/funeral processionThe festival will open with a procession led by the mayor.He imagined a procession (= line) of cars stretching away towards the horizon.(figurative) And on the evening news there was a procession (= series) of journalists giving 'expert' opinions.