Definition of "happenstance"

happenstance

/ˈhæpənˌstæns/

noun
countable and uncountable, plural happenstances
1. (uncountable) The chance or random quality of an event or circumstance.
  Quotations
  Once is happenstance, twice is coincidence, three times is enemy action.
  1964, Goldfinger, spoken by James Bond (Sean Connery)
  Dammit, man this is the gift from God / This ain't happenstance
  2001, “People Talkin'”, in MTV Unplugged, performed by Jay-Z
2. (countable) A chance or random event or circumstance.