Как по Английски будет hintertür

noun

An ambiguity or inadequacy in the law or a set of rules.

Примеры использования:

They exploited tax loopholes

verb

Make arrow slits in (a wall).

Примеры использования:

The walls of the barracks were loopholed for muskets

noun

The rear door of a building.

adjective

Relating to something that is done secretly or in a way that is not direct or honest

Примеры использования:

The change was immediately dismissed as a backdoor tax increase.

noun

A door at the back or side of a building, or at the back of a vehicle

Примеры использования:

There's someone at the back door., he opened the back door and gestured for her to get into the car…