Here are some examples of how "at stake" is used:
* "His reputation is at stake if he doesn't win this election." This means that if he loses, he could lose his good name or standing in the community.
* "The future of the company is at stake in this negotiation." This means that the success or failure of the company depends on the outcome of the negotiation.
* "The safety of the children is at stake during this rescue mission." This means that their lives are in danger and could be lost if the mission fails.
Essentially, "at stake" signifies that something important is on the line and the outcome of a situation has significant consequences.