How to say "allow" in Japanese?


How to say "allow" in Japanese?

My dictionary gives the word 許す yurusu, however I don't know how to use it,
and which word must be used instead, across the different specific meanings of
"allow".

I organized the different meanings of 'allow', from strong (legally allow
someone do something) to light (to let someone do something), and would like
to know the specific word for each of these sentences/situations.

  * Smoking is not allowed inside the airport.
  * The company never allows employees to leave before 9pm.
  * The professor did not allow students to use the dictionary during the exam.
  * My parents allowed me to go to the KTV next saturday night.
  * I never allow myself to have a snack after a physical exercise.
  * The coach let him have a short rest.

**EDIT:**

The sentences simply illustrate the different meanings that the word "allow"
can have, in different situations. There is no any difference with a typical
[question](https://japanese.stackexchange.com/questions/96599/words-for-
restaurant) asking for the different Japanese words for "restaurant", term
which, like "allow", can cover many different specific meanings. For that
reason, I think closing this question is unjustified.




To be honest, 許す can work for all of the examples. I think what matters when
choosing from 許す and other options is not the strength of allowing/forbidding,
but the speaking/writing style you want to use.

-することを許す is sort of a translationese, and not the most basic way to put "to allow somebody to do something" in Japanese. It _is_ common in written Japanese, but not so much in spoken and colloquial Japanese.

Other options for spoken Japanese include:

**-させてくれる**

> The coach let me have a short rest.

> コーチは私に短い休憩をとらせてくれました。

**-してもいいと言う**

> My parents allowed me to go to the KTV next saturday night.

> 両親は次の土曜日の夜にKTVに行ってもいいと言ってくれた。

In a family context, it seems to make sense to avoid translationese, so
行くことを許した may sound strange. However, if the sentence is part of a larger text,
like a memoir, written more formally, 行くことを許した is perfectly fine here, too.




To be honest, 許す can work for all of the examples. I think what matters when
choosing from 許す and other options is not the strength of allowing/forbidding,
but the speaking/writing style you want to use.

-することを許す is sort of a translationese, and not the most basic way to put "to allow somebody to do something" in Japanese. It _is_ common in written Japanese, but not so much in spoken and colloquial Japanese.

Other options for spoken Japanese include:

**-させてくれる**

> The coach let me have a short rest.

> コーチは私に短い休憩をとらせてくれました。

**-してもいいと言う**

> My parents allowed me to go to the KTV next saturday night.

> 両親は次の土曜日の夜にKTVに行ってもいいと言ってくれた。

In a family context, it seems to make sense to avoid translationese, so
行くことを許した may sound strange. However, if the sentence is part of a larger text,
like a memoir, written more formally, 行くことを許した is perfectly fine here, too.

