What is the meaning of circumstance?

noun

• A condition that accompanies or influences some event or activity.
• The set of facts or circumstances that surround a situation or event.
  • usage: "the historical context"
  • synonyms: context, setting
• Information that should be kept in mind when making a decision.
  • usage: "another consideration is the time it would take"
  • synonyms: condition, consideration
• Formal ceremony about important occasions.
  • usage: "pomp and circumstance"