noun A procession of riders, vehicles, ships, etc.
noun A ceremonial parade.
noun A trail ride, usually more than one day long.
noun An often dramatic series or chain of events or things.
As soon as I visited this website, a cavalcade of dialog boxes started to appear on my screen; that's when I realized my computer was infected with a virus.
verb To move as part of a series or group, such as marchers in a parade or snow in an avalanche, especially in large numbers or in a chaotic or dangerous fashion