平静；稳定peaceful; stable

• 局势安定

  the situation is stable

• 安定团结的局面

  state of stability and unity

• 工作安定下来了。

  Work has settled down.

• 生活安定下来了。

  Life has settled down.

使安定to stabilize

• 安定人心

  reassure the public

• 安定民生

  stabilize the people's livelihood

【药】diazepam