You can't call them Unidentified Aerial Vehicles (UAV) because the acronym clashes with Unmanned Aerial Vehicle (UAV). UFO is nicer because it doesn't have to be a vehicle.
This is where it gets a little hairy for me. Vehicle has a specific definition. Are all UFO's truly vehicles? I think it narrows the meaning and now what do we call UFOs that are not vehicles?
You can't call them Unidentified Aerial Vehicles (UAV) because the acronym clashes with Unmanned Aerial Vehicle (UAV). UFO is nicer because it doesn't have to be a vehicle.
Well it is a powered vehicle though.
This is where it gets a little hairy for me. Vehicle has a specific definition. Are all UFO's truly vehicles? I think it narrows the meaning and now what do we call UFOs that are not vehicles?