occurrence

 
Pronunciation: /əˈkʌr(ə)ns/

noun

  • an incident or event: vandalism used to be a rare occurrence
  • [mass noun] the fact or frequency of something happening: the occurrence of cancer increases with age
  • [mass noun] the fact of something existing or being found in a place or under a particular set of conditions: the occurrence of natural gas fields

Origin:

mid 16th century: probably from the plural of archaic occurrent, in the same sense, via French from Latin occurrent- 'befalling', from the verb occurrere (see occur)