Search Result for "occurrence": 
Wordnet 3.0

NOUN (2)

1. an event that happens;
[syn: happening, occurrence, occurrent, natural event]

2. an instance of something occurring;
- Example: "a disease of frequent occurrence"
- Example: "the occurrence (or presence) of life on other planets"

The Collaborative International Dictionary of English v.0.48:

Occurrence \Oc*cur"rence\, n. [Cf. F. occurrence. See Occur.] 1. A coming or happening; as, the occurrence of a railway collision. [1913 Webster] Voyages detain the mind by the perpetual occurrence and expectation of something new. --I. Watts. [1913 Webster] 2. Any event or incident; esp., one which happens without being designed or expected; as, an unusual occurrence, or the ordinary occurrences of life. [1913 Webster] All the occurrence of my fortune. --Shak. [1913 Webster] Syn: See Event. [1913 Webster]
WordNet (r) 3.0 (2006):

occurrence n 1: an event that happens [syn: happening, occurrence, occurrent, natural event] 2: an instance of something occurring; "a disease of frequent occurrence"; "the occurrence (or presence) of life on other planets"
Moby Thesaurus II by Grady Ward, 1.0:

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