The DICT Development Group

  92 Moby Thesaurus words for "occurrence":
     accessibility, actual presence, adventure, affair, apparition,
     appearance, appearing, arising, availability, avatar, being,
     being here, being there, chance, circumstance, coming,
     coming into being, coming-forth, condition, conjuncture,
     contingency, development, disclosure, emergence, emergency, ens,
     entity, epiphany, episode, esse, essence, event, eventuality,
     exigency, existence, experience, exposure, fact, forthcoming,
     frequency, go, hap, happening, happenstance, hereness, immanence,
     immediacy, incarnation, incidence, incident, indwellingness,
     inherence, instance, issuance, juncture, life, likelihood,
     manifestation, materiality, materialization, materializing, matter,
     matter of fact, occasion, opening, particular, pass, phenomenon,
     physical presence, presence, presentation, rate, reality,
     realization, revelation, rise, rising, showing, showing forth,
     situation, spiritual presence, state, subsistence, substantiality,
     theophany, thereness, thing, turn of events, ubiety, unfolding,
     unfoldment, whereness