Greek-English translations for διακύβευση

• 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
• gamble
  I had a gamble on the horses last weekend.
  The sailors had taken many gambles with the sea and always won.
  He gambled his reputation on the outcome.