A coming or happening; as, the occurence of a railway collision.

Any event or incident; esp., one which happens without being designed or expected; as, an unusual occurrence, or the ordinary occurrences of life.

An accident, which may involve a single exposure or continuous or repeated exposures to substantially the same general harmful conditions.

An adverse contingent accident or event neither expected nor intended from the point of view of the insured. With regard to limits on occurrences, catastrophe reinsurance agreements frequently define adverse events having a common cause and sometimes within a specified time frame (for example, 72 hours) as being one occurrence. This definition prevents multiple retentions and reinsurance limits from being exposed in a single catastrophe loss.

an instance of something occurring; "a disease of frequent occurrence"; "the occurrence (or presence) of life on other planets"

SEE: Instance and Row.

An instance of an application in the long-term plan or current plan. An application occurrence is one attempt to process that application. Occurrences are distinguished from one another by run date, input arrival time, and application ID. For example, an application that runs four times a day is said to have four occurrences per day.