Circumstance (noun)

1. A set of conditions or circumstances that surrounds a situation or event.
2. A particular condition or situation that affects a person's life or the way in which something happens.
3. A set of conditions or situations that surrounds an event or a person's life.

Origin:

Late middle english, from latin circumstantia, from circumstare to stand around, from circum- + stare to stand.

Examples:

1. In the current circumstances.
2. Given the circumstances.
3. The circumstances of the accident.
4. The circumstances of the birth.
5. The circumstances of the death.