a.

1. 鎮靜的，沉著的
   You must try to be calm.

   你必須設法冷靜下來。

2. 無風（浪）的；平靜的
   The high wind passed and the sea was calm again.

   大風過後，大海重又風平浪靜。

3. 安靜的
4. 【口】厚臉皮的，狂妄的

n.[S][U]

1. 安靜；鎮定
2. 平靜；無風
   There was a calm on the sea.

   海面上風平浪靜。

vt.

1. 使鎮定；使平靜
   We calmed the old lady down.

   我們使老太太平靜下來。

vi.

1. 鎮定下來；平靜下來
   Calm down, sir. What's the trouble?

   冷靜點，先生。出了什麼事？

adj.

1. not showing or feeling nervousness, anger, or other emotions.
2. (of a place) peaceful and undisturbed.
   ▸(of weather or the sea) free from wind.

n.

1. the state or fact of being peaceful or tranquil.
2. the absence of wind.
   ▸ (calms) an area of the sea without wind.

v.