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Definition reason in British English

reason noun

noun
/ˈriːz(ə)n/

▪ compelling, good, legitimate, logical, main, major, obvious, primary, principal, simple, valid

▪ cite, explain, give, outline, pinpoint, provide, specify, state

After reason, use the preposition for, not of:

✗ The main reason of poverty is unemployment.

✓ The main reason for poverty is unemployment.

✗ A doctor can’t operate if he doesn’t know the reason of the illness.

✓ A doctor can’t operate if he doesn’t know the reason for the illness.

Other words meaning reason

cause the reason that something happens or that you feel a particular emotion: The probable cause of death was drowning.Fifty years after the war, scholars still disagree about its causes.

excuse a reason you give in order to explain why you did something bad or wrong: She gave some excuse about being too sick to finish her essay.

explanation a fact or set of facts that tells you why something happened: There was no obvious explanation for his sudden disappearance.

grounds a word used in official or legal situations, meaning a good or fair reason for doing something: His repeated violence towards her was given as grounds for divorce.Permission for the march was refused, on grounds of public safety.

motivation someone’s personal reason for doing something: The other runners’ times were fast, and that gave me motivation to push even harder.

motive someone’s personal reason for doing something, especially something dishonest or illegal: Police are unsure about a motive for the crime.

pretext a false reason you give for doing something in order to hide your real reason: He got into the warehouse on the pretext of making a building inspection.

purpose the goal that you want to achieve: The purpose of Tuesday’s meeting is to finalize the schedule.

1

a fact, situation, or intention that explains why something happened, why someone did something, or why something is true

Example

The police asked her the reason for her visit.

Example

Could you explain your reasons for choosing this particular course?

Example

The reason why so many people caught the disease is still not clear.

Example

The reason these cars are so expensive is that they are largely built by hand.

Example

The woman cannot be named for legal reasons.

Example

Our application was rejected, but the council gave no reason for its decision.

Example

We can't take you all, for the simple reason that there isn't enough room in the car.

Synonyms and related words
2

a good or clear cause for doing something or thinking something

Example

With plenty of orders coming in, there is reason for optimism about the company's future.

Example

Is there any reason to believe that she isn't telling the truth?

Example

There was every reason to expect that he would agree.

Example

He has refused to pay, not without reason.

Example

She has no reason to shout at you.

Example

I can't see any reason for refusing their invitation.

Synonyms and related words
3

a way of behaving that most people accept as sensible

Example

She had reason on her side.

Example

He finally saw reason and gave me the gun.

Example

Fortunately, reason prevailed and she did not marry him.

Example

Let your children have their freedom, within reason.

Synonyms and related words
Example

His assessment of the situation is based on sheer emotion, not reason.

Synonyms and related words
5

because of

Example

The door is always kept locked by reason of security.

Definition reason in British English