izin in English:

You need your parents' permission if you are going to apply for that.

with your permission

When foreign citizens land in Japan, they must apply for landing permission at the air or seaports where they arrive.

There are frequent instances of malicious door-to-door selling, such as pushing water purifiers on people after carrying out water quality tests without permission.

You need permission to put up that sort of poster, and, most of all, you're ruining the looks of the street!

Father, today I'm going out with some friends. That is, of course, if you give me permission.

At no time have we made your email address available to any other user without your permission.

They must then go through a landing examination conducted by inspection officers before they can obtain landing permission.

In the Diet, often a politician or two leave without permission when a question becomes too personal.

A man who asks his wife's permission before taking any action except breathing is a henpecked husband.

You have our permission to include our software on condition that you send us a copy of the final product.

Obtaining copyright permission can be a time-consuming process.

What's going on today that nobody asks permission?

She GAVE him PERMISSION without asking any questions. [+ to do sth] He has permission to stay in the country for one more year. They even have to ASK FOR PERMISSION before they go to the toilet. He took the car WITHOUT PERMISSION.

if you have permission to do something, you are officially allowed to do it