The 'peace' group
These nouns refer to states.
at ease at liberty (to do something) at peace at risk at stake at work at a disadvantage at an end at a loss at a standstill at your disposal /at the disposal of ... at your ease at your mercy /at the mercy of ... at your service
She felt at a disadvantage because she was not a trained nurse.
We intend to fight the application of this law with every means at our disposal.
I'm afraid I'm not at liberty to reveal the answer.
This policy puts the worker at the mercy of the employer.
I think you will not be at peace until you have faced up to this.
What was at stake here was not just the governorship of Yucatan, but the future of Mexico.