Abort means more than just stop, though. It usually means you had plans, but something changed, and now you can't do them anymore. When a pilot aborts, it means something has happened so that the pilot cannot continue as planned. (Maybe one of the plane's engines failed, and the pilot now has to land as soon as possible.)
Abort usually means stop, but you can stop without aborting. If the pilot arrives as planned and stops the airplane, we don't say he aborted.