(traffic) accident

accidentally, by accident, unintentionally

accident, collision, incident, chance, coincidence, encounter

collision, accident, clash, skirmish

accident, collision, clash; conflict, contradiction

event, occurance, happeing, case

rally, procession, festival (large gathering, event)

magnificence, splendor, radiance; manifestation, show, event

push, blow, hit; confinement, incarceration; state of frenzy, being possessed; crowd, commotion; obligation; event, occurance

an event or circumstance that people can learn from