occurrence
The occurrence of rare birds in this area is a delight for ornithologists.
The rare birds appearing in this area is exciting for bird experts.
an instance or event that happens
The occurrence of earthquakes in this region is frequent.
Earthquakes happen often in this area.
The occurrence of such a rare phenomenon was documented.
This rare event was recorded.
Often used in formal or scientific contexts to describe events or instances.
the frequency or rate at which something happens
The occurrence of the disease in the population was analyzed.
The frequency of the disease in the population was studied.
In statistics, it refers to how often something happens.
Collocations
Antonyms
Related Phrases
Pro Tip
Formal vs. Informal
Use 'occurrence' in formal or scientific writing; in casual speech, 'event' or 'happening' may be more natural.
Gold Rule
Singular vs. Plural
Use 'occurrence' in singular form for a single event; plural ('occurrences') for multiple instances.
Word Origin
From Middle French 'occurrence' (14th century), from Latin 'occurrere' (to run to meet, happen).
Usage Notes
Can be used in both general and technical contexts, often in formal writing.