1
- (of a person, action, or manner) not showing or feeling nervousness, anger, or other emotions（人、行为或举止）镇静的; 冷静的; 平静的：
keep calm, she told herself
她告诉自己要保持冷静
his voice was calm.
他的声音平静。
1.1
- (of a place) peaceful, especially in contrast to recent violent activity（地方）安静的（尤指与近期的激烈活动相对）：
the city was reported to be calm, but army patrols remained.
据报道, 该城很平静, 但仍有军队巡逻。
2
- (of the weather) pleasantly free from wind（天气）无风的：
the night was clear and calm.
这个晚上无云且无风。
2.1
- (of the sea) not disturbed by large waves（大海）无浪的, 平静的。
mass noun
1
- the absence of violent or confrontational activity within a place or group平静：
the elections proceeded in an atmosphere of relative calm
选举在相对平静的气氛中进行
in sing. an edgy calm reigned in the capital.紧张的平静笼罩着首都。
1.1
- the absence of nervousness, agitation, or excitement in a person镇静, 沉着, 心平气和：
his usual calm deserted him.
他不再如往日那样心平气和。
2
- the absence of wind无风：
in the centre of the storm calm prevailed.
风暴中心风平浪静。
2.1
- still air represented by force 0 on the Beaufort scale (less than 1 knot or 1 kph)（蒲福风级）零级风。
2.2
- count noun（常作calms）an area of the sea without wind无风的海域。
with obj.
1- make (someone) tranquil and quiet; soothe使平静, 使镇静; 安慰：
I took him inside and tried to calm him down
我把他带到里面, 想使他平静下来
he went round to the pub to calm his nerves
他去酒吧放松一下神经
as adj. calming a cup of tea will have a calming effect.一杯茶会有镇静效果。
1.1
- no obj.
calm down
(of a person) become tranquil and quiet（人）平静下来, 冷静下来, 镇静下来： gradually I calmed down and lost my anxiety.
我渐渐地平静下来, 忘掉了忧虑。
短语
the calm before the storm
- 见STORM.
派生词
calmly
adverbcalmness
noun词源
late Middle English: via one of the Romance languages from Greek kauma 'heat (of the day)'.