occurrence

Heavy rain is a routine occurrence in Belém, considered the gateway to the Amazon, with some 10 inches falling on average each month.

In footage of the incident, Lucey and another reporter could be heard trying to talk at the same time -- a common occurrence as journalists in the press corps try to get the president's attention.

But unexpected things had become such a frequent occurrence lately, nothing really surprised Penelope anymore.

While disruption from drones has become a regular occurrence, a physical attack on Poland’s critical infrastructure would mark a serious escalation.

Observers say their bitter rivalry resulted in bus bombs, disappearances and extrajudicial killings becoming regular occurrences.