Greek-English translations for σύμπτωση

• chance
  We had the chance to meet the president last week
  Why leave it to chance when a few simple steps will secure the desired outcome?
  There is a 30 percent chance of rain tomorrow
• coincidence
  All the same, the coincidence is distressing. Παρ' όλα αυτά παραμένει μια λυπηρή σύμπτωση.
• concurrence
• happenstance
  by happenstance
  the happenstances of life