The word "occurrence" refers to something that happens or takes place. It is an event or situation that takes shape in a particular time or location. Full definition
Some possibility or probability of occurrence of such an event would then trigger a decision tree based upon modeling and analysis that occurred well in advance of the actual event. (judithcurry.com)
Ten percent were diagnosed with the condition, which was double the rate of occurrence in intact males. (healthypets.mercola.com)
It is the more common occurrence of a dog being affected by simultaneous attacks of both conditions. (petpremium.com)