1. (noun) an event that happens

• happening
• natural event
• occurrent

1. (noun) an event that happens

• accident
• chance event
• fortuity
• stroke
• accompaniment
• attendant
• co-occurrence
• concomitant
• alteration
• change
• modification
• appearance
• avalanche
• beginning
• black eye
• blow
• reversal
• reverse
• setback
• bonanza
• boom
• bunce
• godsend
• gold rush
• gravy
• manna from heaven
• windfall
• break
• interruption
• burst
• flare-up
• outburst
• case
• example
• instance
• collapse
• collapse
• crash
• computer error
• error
• conclusion
• ending
• finish
• contact
• impinging
• striking
• contingence
• contingency
• eventuality
• convergence
• destiny
• fate
• disappearance
• disappearance
• discharge
• episode
• eruption
• irruption
• outbreak
• experience
• failure
• finish
• fire
• flash
• incident
• juncture
• occasion
• marvel
• wonder
• miracle
• motion
• movement
• news event
• one-off
• periodic event
• recurrent event
• sound
• success
• supervention
• thing
• treat
• trouble
• union

2. (noun) an instance of something occurring

• allopatry
• sympatry

1. (noun) an event that happens

• event

2. (noun) an instance of something occurring

• presence

1. (noun) an event that happens

• come about
• fall out
• go on
• hap
• happen
• occur
• pass
• pass off
• take place
• occurrent