That is the correct spelling of "occurrence" (an event).
That is the correct spelling of "surprise" (an unexpected occurrence).
The correct spelling of the noun is "occurrence" (event, incident).
The correct spelling is occurrence (event, instance).
That is the correct spelling of "mishap" (accident, unfortunate occurrence).
The correct spelling is "occurring". The noun form is similarly "occurrence".
The correct spelling is "incredible" (unbelievable, remarkable).
The correct spelling is occurrence.
The correct spelling is phenomenon (an observed occurrence, especially an extraordinary one).
That is the correct spelling of "occurrence" (an event).
That is the correct spelling of "surprise" (an unexpected occurrence).
The correct spelling is "tragedy" (a sad occurrence).
That is the correct spelling of "happenstance" (a chance occurrence or situation).
The correct spelling of the noun is "occurrence" (event, incident).
The correct spelling is occurrence (event, instance).
That is the correct spelling of "mishap" (accident, unfortunate occurrence).
That is the correct spelling of "chronological" (arranged in order by occurrence in time).