Synonyms for Occurrence:

n.

existential, life expectancy, lifespan, lifetime, life cycle, coexistence, history. showcase, be, show, life. happen. development. act (noun)
thing.
chance (noun)
occasion.
circumstance (noun)
happening, moment, milestone, situation, episode, juncture, event, status, incidence, conjuncture, instant, occasion, basis, condition, cardinal point, circumstance, landmark.
event (noun)
Occurring, appearance, phenomenon, experience.
happening, development (noun)
condition, occasion, circumstance, incident, existence, incidence, juncture, episode, situation, appearance, event, thing.
occurrence (noun)
news, happening, natural event, incident.

Other synonyms:

coexistence, life expectancy, lifespan, show, existential, lifetime. experience, life cycle, phenomenon. showcase, appearance. history. development. life. Other relevant words:
coexistence, existential, history, lifespan, show, appearance, natural event, phenomenon, development, life, experience.

Usage examples for occurrence

  1. When he came last night to our assistance, before I even consented to accept his services I insisted that no occurrence of the defence should prevent our meeting if we both survived. – My Lady of the North by Randall Parrish
  2. It isn't a rare occurrence at all. – The Bicyclers and Three Other Farces by John Kendrick Bangs