reason

noun

1. the capacity for rational thought or inference or discrimination

e.g. we are told that man is endowed with reason and capable of distinguishing good from evil

Synonym: understandingintellect

2. a fact that logically justifies some premise or conclusion

e.g. there is reason to believe he is lying

3. an explanation of the cause of some phenomenon

e.g. the reason a steady state was never reached was that the back pressure built up too slowly

4. a justification for something existing or happening

e.g. he had no cause to complain
they had good reason to rejoice

Synonym: causegrounds

5. a rational motive for a belief or action

e.g. the reason that war was declared
the grounds for their declaration

Synonym: ground

6. the state of having good sense and sound judgment

e.g. his rationality may have been impaired
he had to rely less on reason than on rousing their emotions

Synonym: rationalityreasonableness

verb

1. think logically

e.g. The children must learn to reason

2. decide by reasoning
draw or come to a conclusion

e.g. We reasoned that it was cheaper to rent than to buy a house

Synonym: reason outconclude

3. present reasons and arguments

Synonym: argue

1. 原因；理由；动机
The reason for something is a fact or situation which explains why it happens or what causes it to happen.

e.g. There is a reason for every important thing that happens...
每件重要事情的发生都有原因。
e.g. Who would have a reason to want to kill her?
谁会有杀她的动机呢？

2. 理由；确凿的证据
If you say that you have reason to believe something or to have a particular emotion, you mean that you have evidence for your belief or there is a definite cause of your feeling.

reason的反义词

e.g. They had reason to believe there could be trouble...
他们有理由相信可能会遇到麻烦。
e.g. He had every reason to be upset...
他完全有理由生气。

3. 理性;理智
The ability that people have to think and to make sensible judgments can be referred to as reason .

e.g. ...a conflict between emotion and reason...
情感和理智的冲突
e.g. Mike is my voice of reason. He thinks logically and points out where I'm going wrong.
迈克帮我保持理智。他的思维很有逻辑性，可以指出我的错误。

4. 推理;推论;推断
If you reason that something is true, you decide that it is true after thinking carefully about all the facts.

e.g. I reasoned that changing my diet would lower my cholesterol level...
我推断改变自己的饮食可以降低我的胆固醇水平。
e.g. 'Listen,' I reasoned, 'it doesn't take a genius to figure out what Adam's up to.'
“听着，”我分析道，“要弄清楚亚当想要干什么很容易。”

5. （常用来暗指不赞成某人的所作所为）只有自己知道为什么，出于自身的理由
If you do not know why someone did something, you can say that they did it for reasons best known to themselves. You usually use this expression when you do not agree with what they did.

e.g. For reasons best known to himself, Algie changed his name.
不知是出于什么原因，阿尔吉改了名字。

6. 因为；由于；由…引起；以…为理由
If one thing happens by reason of another, it happens because of it.

e.g. The boss retains enormous influence by reason of his position...
老板由于自身的地位而一直有极大的影响力。
e.g. He pleaded innocent by reason of insanity.
他以精神不健全为由申辩无罪。

7. 听从劝告;理智行事
If you try to make someone listen to reason, you try to persuade them to listen to sensible arguments and be influenced by them.

e.g. The company's top executives had refused to listen to reason.
公司的高层管理人员拒绝理智行事。

8. 无缘无故；莫名其妙；没有理由
If you say that something happened or was done for no reason ,for no good reason, or for no reason at all, you mean that there was no obvious reason why it happened or was done.

reason是什么意思

e.g. The guards, he said, would punch them for no reason...
他说警卫会无缘无故殴打他们。
e.g. For no reason at all the two men started to laugh.
两个人莫名其妙地开始大笑。

9. 活着的理由；生存的原因
If a person or thing is someone's reason for living or their reason for being, they are the most important thing in that person's life.

e.g. Chloe is my reason for living.
克洛艾是我活着的理由。

10. 不知为何;不知什么原因
If you say that something happened or is true for some reason, you mean that you know it happened or is true, but you do not know why.

e.g. For some reason, the curtains were shut...
不知什么原因，窗帘拉着。
e.g. For some inexplicable reason she was attracted to Patrick.
因为某些无法解释的原因，她被帕特里克所吸引。

11. 正当的;合乎情理的;理智范围内的
If you say that you will do anything within reason, you mean that you will do anything that is fair or reasonable and not too extreme.

e.g. I will take any job that comes along, within reason...
我会接受任何给我的工作，只要是正当的。
e.g. It means working, within reason, for whatever time is necessary.
这意味着在合理的范围内花费所有必要的时间工作。

12. rhyme or reason -> see rhyme
to reason -> see
it stands to reason -> see stand

相关词组：reason with

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2. 原因,理由：我有时候惊讶于他们这种不问原因的信仰,同时也惊讶我们自己为理性的驯服:没有理由已经成为我们没有信仰的基本原因,理由(reason)已经成为我们信任与信仰的前提.