Bombing run and Dive-bombing

Bombing run noun - That part of the flight that begins with the approach to the target; includes target acquisition and ends with the release of the bombs.

Dive-bombing and bombing run are semantically related. In some cases you can replace phrase "Dive-bombing" with "Bombing run", this phrases are similar.

Dive-bombing noun - A bombing run in which the bomber releases the bomb while flying straight toward the target.

Bombing run and dive-bombing are semantically related. You can use "Bombing run" instead a noun phrase "Dive-bombing".