Empennage and Rear end

Empennage noun - The rear part of an aircraft.

Rear end and empennage are semantically related. in part topic. In some cases you can use "Rear end" instead a noun "Empennage", when it comes to topics like tail.

Rear end noun - The part of the body upon which someone sits.

Empennage and rear end are semantically related. You can use "Empennage" instead a noun phrase "Rear end".